A. met B. meet C. meeting D. to meet
单项选择题() you go there early, there won’t be much a chance of getting a ticket.
A. Until B. If C. Unless D. If only
单项选择题—Have your students ever seen the silent film —No, they are too young ()the old film.
A. to seeing B. have seen C. to have seen D. to have not seen
