--English is very important. You learn it well.A. ought toB. needn’tC. can’t
We are now short fresh water. Something must be done to prevent people polluting it.A. of;from B. for;from C. of;to
About 35% of the rubbish in HongKong can be recycled every year the rest can’t.A. then B. while C. since
- of Class 1 students is in the classroom.-They are having a P.E. lesson on the playground.A. All B. None C. Neither.
— I have never visited a paper factory.— .A. So have I B. I haven’t now C. Neither have I
He’s read this book before, ?A. hasn’t he B. doesn’t he C. isn’t.