The doctor says that the problem with her husband’s eyes ___by many reasons.
| A．cause | B．causes | C．is caused | D．are caused |
--This is _______ fantastic movie I have ever seen.
--Yes, I’ve never seen a _______ one.
| A．the worst; best | B．the most; better |
| C．the better; best | D．the worse; good |
The rivers will become dirtier and dirtier _______ we take action to protect them.
| A．since | B．if | C．until | D．Unless |
--I’m a little hungry, Mum.
--There are some cakes on the plate. You can take _______.
| A．it | B．one | C．that | D．This |
--Would you like some tea, please?
--Yes, and I prefer tea _______ some sugar.
| A．to | B．for | C．with | D．From |
--The man in a black suit _______ be our youth worker.
-- I’m sure it _____ be him. I saw him in the laboratory building some minutes ago.
| A．must; can’t | B．can; mustn’t | C．can; could | D．must; won’t |