The elevator _________ and we were trapped inside for half an hour.

t to the library ____ last night, butyou broke your word.

This is the first time that he________to join us in a research. [ ]

What did you do yesterday afternoon-I went to the bookstore，___ some books and visited myuncle

t your friend comes up with surprise you, don’treject it immediately. _____, imagine that it is true.