Sure, here are the correct answers to each of the questions:

**Question 1:**
______have enough apples, she’ll make an apple pie this afternoon.
**A. Should she**
**B. If she**
**C. Will she**
**D. Unless she**
**Answer: B. If she**

**Question 2:**
If you don’t know how to spell a word, you______look it up in the______dictionary.
**A. must**
**B. will**
**C. should**
**D. ought**
**Answer: C. should**

**Question 3:**
If the sun______, we______for a walk.
**A. shines / will go**
**B. shone / will go**
**C. shone / would go**
**D. had shone / would go**
**Answer: A. shines / will go**

**Question 4:**
The campfire______if it______last night.
**A. wouldn’t be cancelled/hadn’t rained**
**B. wouldn’t have been cancelled/hadn’t rained**
**C. would have been cancelled/hadn’t rained**
**D. will be cancelled/rains**
**Answer: B. wouldn’t have been cancelled/hadn’t rained**

**Question 5:**
But for our parents, we______successful in life.
**A. will never be**
**B. would never be**
**C. wouldn’t have**
**D. would have never been**
**Answer: B. would never be**

**Question 6:**
If I______my wallet at home this morning, I______money for lunch now.
**A. leave / will have**
**B. didn’t leave / would have**
**C. hadn’t left / would have**
**D. hadn’t left / would have had**
**Answer: C. hadn’t left / would have**

**Question 7:**
If we______the plans carefully, we would not have had so many serious mistakes.
**A. study**
**B. had studied**
**C. studied**
**D. were studying**
**Answer: B. had studied**

**Question 8:**
I will never talk to you again______you apologize me______your being rude.
**A. if / for**
**B. unless / for**
**C. or / of**
**D. whether / or**
**Answer: B. unless / for**

**Question 9:**
______ you work harder, you will be sacked.
**A. Whether**
**B. If**
**C. However**
**D. Unless**
**Answer: D. Unless**

**Question 10:**
"I think you should stop smoking."
**A. If I am you, I will stop smoking.**
**B. If I were you, I will stop smoking.**
**C. If I were you, I would stop smoking.**
**D. If I had been you, I would stop smoking.**
**Answer: C. If I were you, I would stop smoking.**

**Question 11:**
If you take the ice out of the fridge, it______.
**A. vaporizes**
**B. melts**
**C. heats**
**D. disappears**
**Answer: B. melts**

**Question 12:**
Unless we______more snow, we can’t go skiing.
**A. will have**
**B. have**
**C. have had**
**D. had**
**Answer: B. have**

**Question 13:**
You’ll fail the exam______you start revising.
**A. if**
**B. until**
**C. when**
**D. unless**
**Answer: D. unless**

**Question 14:**
Unless you wash the car, you______not drive it at the weekend.
**A. would**
**B. could**
**C. have to**
**D. may**
**Answer: D. may**

**Question 15:**
If Peter______his car before the drive, he______the problem of out of petrol.
**A. checked / will not get**
**B. had checked / would not have got**
**C. checks / will not have got**
**D. would be checking / will not have got**
**Answer: B. had checked / would not have got**

**Question 16:**
Most people you meet will be polite to you______.
**A. if you are polite to them**
**B. if you will be polite to them**
**C. unless you are polite to them**
**D. if you were polite to them**
**Answer: A. if you are polite to them**

**Question 17:**
If you do so, it______the matter worse.
**A. makes only**
**B. would only make**
**C. will only make**
**D. had only made**
**Answer: C. will only make**

**Question 18:**
Hurry up______you will miss the bus and be late for school.
**A. if**
**B. and**
**C. or**
**D. as**
**Answer: C. or**

**Question 19:**
You will get a good seat if you______first.
**A. come**
**B. came**
**C. have come**
**D. will come**
**Answer: A. come**

**Question 20:**
If Margaret hadn’t been wearing a seat belt, she______injured.
**A. has been**
**B. would has been**
**C. would be**
**D. would have been**
**Answer: D. would have been**