This is an________ city.
A. 80-year-old B. 80 years old C. 80-years-old D. 80 year-old
If you want better grades , you _ _ watch so much TV.
A. shouldn’t B. should C. could D. must
Yesterday I rode to school instead ____ a taxi.
A. taking B. of taking C. took D. of took
—Would you mind me opening the window?
—____,Please do as you like.
A. Certainly not B. Sure. C. You’d better not. D. Never mind.
We have planted _____trees today.
A. thousands of B. thousands C. two thousands D. thousand of
It’s very kind ____ you to help me with my English.
A. for B. with C. of D. to
