根据句意用介词填空.1.look----the blacboard and listen----me.2.who is-

1.look at the blacboard and listen to me.
2.who is on duty (值日)today?
3.look!a cat is in / under the tree.
4.give me some cups of drink.
5.what's wrong with you,dad?
6.what's in this red bag?
7.the bike in the tree is hers.
8.it's time for bed.
9.the broom is behind (在…后面)the door.so i can't see it.
10.i have two eggs and noodles for breakfast.