【题目】Whoever leaves the room last must make sure________all the windows are shut.
A.that if
B.whether
C.if
D.that

A. apparent B. tentative

C. unconditional D. sympathetic

A. Go on the Internet B. Make a phone call C. Take a train trip

A. In a classroom B. In a library C. In a bookstore

【题目】From the address________on the envelope，we see that the letter is from America.
A.marking
B.marked
C.to be marked
D.having marked

start towards a better future because they are taught how to fish.

A. kills B. is killing C. has killedD. killed

A. call atB. call up C. call on D. call off

A. Going out B. Ordering drinks C. Preparing for a party

—________. You know, practice makes perfect.

A. It’s hard to say B. It’s up to you

C. You are not alone D. You can’t be serious

A. It’s amusing B. It’s exciting C. It’s disappointing