He's ___________ (无法忍受的) when he is in a bad temper.

＿＿＿all over the hill and around the lake are wild flowers of different kinds.

　　A.To grow   B.Growing   C.Grown   D.Grow

如果你拒绝他们的邀请，我也拒绝。

If you refuse their invitation,_______ ________ _________.

Three?fourths of the surface of the earth ________ covered by water.

A．is 　　　　　　 B．are

C．were 　　　　　 D．has been

I would appreciate ________ if you could teach me how to use the computer.

A．that　　　　 　　　　　　　 B．this　　　　　 C．it　 D．you

“Have you handed in your schoolwork yet?”

“Yes, I have. I guess it ______ now.”

A. has graded　　　　　　　　

B. is graded

C. is being graded　　　　　　　

D. is grading　　　

John and I________  friends for eight years. We first got to know each other at a Christmas party. But we_______ each other a couple of times before that.
A. had been; have seen                  B have been; have seen
C. had been; had seen                   D have been; had seen

Before building a house，you will have to　　　 the government’s permission.

A.get from　　　　　 B.follow　　　　　　 C.receive　　　　　 D.ask for

—We weren’t sure which way to go. In the end turn right.  
—You _____ the wrong way. You _____ left.
  A. had gone; must have turned      B. went; must turn
C. have gone; would have turned     D. went; should have turned

The two old sisters，_______ so long，held each other and burst into tears.

  A. being separated　　　　　　　 B. having been separated

  C. having separated　　　　　　 D. had been separated