—Hey, Jack. Waste paper mustn’t ________ here.
—Sorry, I won’t do that again.
A.throw | B.be thrown | C.be throwing | D.to throw |
Our English teacher came into the classroom____some books.
A.on | B.with | C. at | D. to |
Teenagers should be allowed out on school nights.
A. going | B.to go | C.gone | D.went |
Tim doesn’t study ____as his sister does .
A.very hard | B.harder |
C.so hard | D.hard enough |
Excuse me! Can you tell me____next?
A. how to do | B.what should we do |
C.what we should do | D.how we should do |
This book is ___hard ___understand.
A. too ; to | B. such; to |
C. too ; too | D. so ; that |