【2012黑龙江齐齐哈尔】The math problem is so hard. I really don’t know_____. A. how to do it B. how to do C. what to do it
--- is the school from your home, do you know? --- About 30 minutes’ walk.
---How long have you ________ your penfriend? ---For five days. I received it last Sunday.
On women’s Day, of the girls was excited because they each a present.
________ useful information they’ve found on ________ Internet!
---It’s generous of you to donate so much money to the poor. ---__________.