A new shopping mall ________ in Changchun last year and it is famous for its beauty.
A.built B.to build C.was built D.builds
— Would you mind ________ the window? It's too hot inside.
— No, not at all.
A.open B.opening C.opens D.to open
— Do you know ________ for vacation in Paris?
— Last week, maybe on Monday morning.
A.when he leaves B.when does he leave C.when he left D.when did he leave
The school bag ________ be Lucy's, but I'm not sure about it.
A.must B.might C.would D.can't
—Helen, do you know if Martin _______ to my party next week?
—I think he will come if he ______ free.
A.will come; will be B.will come; is
C.come; is D.comes; will be
— Do you know some robots are able to take care of children?
— Really? ________ interesting it is!
A.What B.What an C.How D.How an
