X. Fill each blank with a preposition
Eating too much can make you suffer from obesity and other diseases.
For several days the boy complained that he had a pain in his neck.
They have decided to clean up the lake shore because it is full of rubbish.
Americans have had the tradition of helping each other for at least 300 years now.
Because of the pandemic, all the students in the city had to study online.
XI. Odd one out
A. boring (negative connotation) B. exciting C. fascinating D. interesting
A. and (conjunction) B. but C. though D. with
A. smaller (adjective) B. litter (noun) C. fewer (adjective) D. hotter (adjective)
A. apple (fruit) B. orange (fruit) C. fruit (category) D. durian (fruit)
A. acne (skin condition) B. allergy (medical condition) C. sunburn (skin condition) D. health (general well-being)
XII. Choose an answer in B to complete the dialogue
A: Were you sporty as a child? B: d) No, I always felt sick and weak. I had allergies too, so I always had a runny nose, and itchy skin.
A: When did that change? B: b) My friends started doing sports. I wanted to, too. My sports instructor said "Do more exercise, or continue to feel sick. It's up to you!"  
A: Was it easy? B: a) No, it was hard. I did more exercise, so my body ached. But slowly I felt better.
A: What do you do now? B: e) I do triathlons around the world. It's a tough competition. You have to swim, run, and ride a bike. I use around 6.500 calories in one event!  
A: How do you prepare? B: c) Three great things to do before the race are: eat more healthy food, sleep more, and do more exercise. Then you'll be ready.