The line is busy, I can't ______.

[    ]

A. get on   B. get over   C. get up   D. get through

The teachers in our school are ________ very young between the ages of twenty and thirty .

[　　]

A narrow strait ________ Europe from Africa.

[　　]

—I'm afraid I've put you ________ much trouble .

—Don't mention it .

[　　]

I'm ________ and I'd like to go to bed .

[　　]

Xiao Li was badly ________ when he fell off the bus .

[　　]

We all went to see the play ________ Li Ming last Sunday.

[　　]

If Tom is not well enough to go with you, take me ________.

[　　]

________ it be Xiao Wang who did it?

[　　]

That day on his way home he ________ a wallet lying on the ground.

[　　]

A．founded

B．found out

C．discovered

D．found