1 . How long do you think it will be ______ another e-commerce giant comes out to exceed Alibaba?

A．when

B．before

C．since

D．until

2 . I’ve made progress in English ____the teacher’s well-organized teaching and exact explanation.

A．because	B．as
C．as a result of	D．as a result

3 . Will it be ages ______ he goes back to school? I'm so worried about him.

A．before	B．after
C．when	D．as

4 . You must us that Brown admitted a thief before he entered our factory.

A．admit; being	B．admit to; being
C．admit; to be	D．admit to; to be

5 . —It is a long time      I saw you last time.
—Yes. And it will be a long time     we see each other again.

A．when; before	B．after; when
C．since; before	D．since; until

6 . Many buildings ______ on both sides of the street the next year.

A．will build	B．were built
C．are to be built	D．will be built

7 . Keep in mind that you are not supposed to use any of the equipment ________ you are allowed to.

A．when

B．if

C．unless

D．because

8 . She'd lived in London and Manchester, but she liked   ______ and moved to Cambridge.

A．both

B．neither

C．none

D．either

9 . Would you please keep silent? The weather report__________, and I want to listen.

A．is broadcast	B．is being broadcast
C．has been broadcast	D．had been broadcast

10 . —The wind is always blowing here．
—How I wish it ______ today．

A．won't blow

B．didn't blow

C．doesn't blow

D．isn't blowing