So difficult _________ that I could not answer it then.

[    ]

A. the question is   B. the question was

C. was the question  D. is the question

Andrew stood there with his head _________, silent.

[    ]

A. to be bent   B. bent   C. to bend   D. bending

________ who set him ________ would get a lot of money.

[　　]

This is the shop ________ you can buy all _______ you need.

[　　]

Could you lend me the book ________?

[　　]

There's ________ wood in front so that we can't march ________ quickly.

[　　]

He ________ succeeding by working hard.

[　　]

They didn't permit him ________ with them.

[　　]

If you act like that, you'll get yourself ________.

[　　]

—Why didn't you go to play basketball?

—I ________, buy my mother didn't ________.

[　　]