问题

In class the students put their books _____ their desks. [ ]
A: on
B: in
C: behind
D:under
B: in
C: behind
D:under
正确答案是:
同类题型
.— Where is your father? — I’m not sure. He_______ in the office.
His pronunciation is better, for he kept ______ a short passage after the tape every morning.
Tens years ago, there _____ full of fish in the lake .Now there are _____ fish .
Tom was _____ the queue when I saw him. [ ]
Sally took a photo of her friends while they _________ computer games.