Question 1:
Which has a healthier lifestyle?
Explanation: We use "which" to ask a question about a choice between two or more options.
Question 2:
A great way for teenagers to spend their leisure time is by volunteering in their local community.
Explanation: The sentence is complete and doesn't require any additional words.
Question 3:
I enjoy walking in the countryside because I can appreciate the scenery more _____ if I were driving.
Explanation: We need a comparative adverb to compare the way of appreciating the scenery.
Answer: C. more slowly
Question 4:
Unless you _____ all of my questions, I can't do anything to help you.
Explanation: We need a verb in the present tense to form a conditional sentence.
Answer: B. answer
Question 5:
I suggest that we _____ take a trip to Cu Chi tunnels next Sunday.
Explanation: "Suggest" is followed by the subjunctive mood, which uses the base form of the verb.
Answer: D. should
Question 6:
The teacher will be furious _____ you don't do the homework.
Explanation: We need a conjunction to express a condition.
Answer: B. if
Question 7:
_____ month is the Hoa Ban Festival of the Thai people held in?
Explanation: We need a question word to ask about a specific time period.
Answer: C. Which
Question 8:
What _____ at school tomorrow?
Explanation: We need a future tense to talk about a planned action.
Answer: B. will you do
Question 9:
If we pollute the water, we will not have _____ fresh water to use in the future.
Explanation: We need a quantifier to express a small amount.
Answer: D. little
Question 10:
Nga loves _____ her free time with other people.
Explanation: We need a gerund phrase to express a general activity.
Answer: C. to spending