1 . ________suddenly occurred to Miranda that perhaps no one would believe her story. (用适当的词填空)

2 . _______ suddenly occurred to him that he had left his keys in the office.

3 . _______ remains to be seen whether the project will benefit the people there.

4 . I don't think it wise        the hard work that they have refused to do.

A．for you to take on

B．of you to take on

C．for you taking on

D．of you taking on

5 . ___________is required that under no circumstances _______he betray his motherland even if there are temptations like money or beauty.

A．What; can

B．It; could

C．It; should

D．What; could

6 . ______ isn’t worthwhile for you to wait any longer. (用适当的词填空)

7 . — How did ________ feel to run 3,000 meters at the sports meeting?
—Terrible! Especially when I saw I was left so far ________ by others.

A．that; alone

B．it; alone

C．that; behind

D．it; behind

8 . He is rich and brave. __________ is no wonder he is popular with girls.

A．There

B．That

C．It

D．What

9 . ________ occurred to me that I had left my shirt on the playground.

A．It

B．One

C．That

D．What

10 . �. As they were classmates, ________ was no wonder that they should do the work in the same way.

A．This

B．That

C．There

D．It