We will wait until everyone ________ back.
A. comes B. come
C. will come D. is coming
Wang Hui hopes ________ a scientist in the future.
A. be B. being
C. to be D. been
—Where is Gary?
—He _______ in the library.
A. read B. reads
C. is reading D. will read
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