Lily and Grace are my best friends. ________ of them are very smart.
A. All B. Both C. Some D. Any
—________ I use your pen?
— Sure. Here you are.
A. Must B. Need C. May D. Should
—________ are we going to meet?
— In front of the shopping center.
A. When B. Where C. How D. Why
The beach is not as ________ as it used to be. Let’s collect the rubbish.
A. clean B. cleaner
C. cleanest D. the cleanest
Put on your coat, ________ you may catch a cold.
A. and B. so C. but D. or
— Thank you so much ________ your advice.
— It’s a pleasure.
A. with B. for C. of D. to
