问题
Listen!Some birds are singing_____ the tree! [ ]
A: in
B: on
C: at
D:of
B: on
C: at
D:of
正确答案是：
同类题型
I like going to the movies_____ my friends.[ ]
Do you know __________ the Capital Museum? –Next Friday.
Why is the classroom so dirty?——Sorry, Sir. It _____ yesterday. We forgot to do it.
．His hair is shorter than _______．
A terrible earthquake happened ______ the afternoon of March 11th, 2011 in Japan.[ ]