____ some teenagers don’t realize is ____ difficult life can be after they get addicted to drugs.
| A．What；how | B．What；what | C．That；how | D．That；what |
--- What should I do with my paper, Mr. Jason?
--- Well, what I have said about Peter’s _____ yours.
| A．goes for | B．goes through | C．goes up | D．goes over |
I heard that some patients who had undergone laser eye surgery experienced sudden losses of vision, ______?
| A．didn’t I | B．hadn’t they | C．didn’t they | D．isn’t it |
--- I rang you at about ten, but there was no reply.
--- Oh, that was probably _____ I was seeing the doctor.
| A．for | B．why | C．when | D．how |
Have you ever found _____ flash drive has no enough space? Better replace it for ____ bigger one.
| A．the; the | B．a; a | C．a; the | D．the; a |
Wang Feng’s _________ our school at the English speech contest proved to be a success.
| A．will represent | B．to represent | C．representing | D．represented |