Tom’s decided to devote all he could ________ his English before going abroad.
A. to improving B. have improved
C. to improve D. improve
—_________I borrow your lighter for a minute?
—Sure, no problem. Actually, you _________keep it if you want to. I’ve given up smoking.
A. Can; can B. Should; may C. Must; can D. May; must
Each of the club members ________ready to help those who were in trouble.
A. is B. are C. was D. were
We arrived at the small town too late, almost at midnight. We found there was no food ________ as all the shops were closed.
A. delicious B. suitable C. available D. pleasant
—Are you satisfied with what she has done?
— Not at all. It couldn’t be ________.
A. so bad B. any worse
C. much better D. the best
We will build another new Great Green Wall________ the northern part of China.
A. among B. across C. through D. between
