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My sister will keep ________ the book ________ she finishes it.

[　　]

A．reading, until

B．reading, before

C．to read until

D．to read, after

I don't understand why he bought ________ things with ________ money.

[　　]

A．so many, so many

B．so mush, so much

C．so many, so much

D．so mush, so many

Ask the boy to come ________ .

[　　]

A．nearly quickly

B．nearly quick

C．near quickly

D．near quick

Listen, can you hear someone ________ at the door?

 Yes, I've heard it_________ three times.

[　　]

A．knock, knocking

B．knocking, knock

C．knock, knock

D．knocking, knocking

Which of these would you ________ like to own?

[　　]

A．very

B．much

C．most

D．best

Do you think ________ dangerous to stay with a tiger?

[　　]

A．this

B．that

C．it

D．/

It's very late, but he still keep ________ .

[　　]

A．to work on it

B．working on it

C．to work it on

D．working it on

He ________ clean the room, it's clean and tidy now.

[　　]

A．needn't to

B．doesn't need

C．don't need

D．needn't

We don't know if he ________ this afternoon.

[　　]

A．will come

B．comes

C．came

D．would come

He'll ________ learn to use it.

[　　]

A．be able to

B．is

C．can

D．a(chǎn)ble to