Most teenagers play games on their smart-phones（智能手机）_______fun.
A. at B. with C. in D. For
She wanted to buy some comic books, but there was ______ left in the shop.
A.nothing B. none C. something D. nobody
I often hear the girl_______ beautifully next door. When I passed the door, I heard her _______ just now.
A. sing, singing B. sings, sing
C. sing, sings D. singing, sing
____ of the work_____ too hard for me, so I can't finish it without any help.
A. Sixty percent; is B. Sixty percents; are
C. Sixty percents; is D. Sixty percent; are
Do you write a report______wild animals_____danger for the newspaper?
A. about; on B. on; in
C. to; from D. in; with
–What do you think of________nature reserve you visited last weekend?
-It’s great. It is ________ideal home for wildlife.
A. the ; a B. the; an
C. a; an D. an; an
