Before you go on stage, what should you take time to do？A.Learn your lines.B.Read throug

A. while

B. until

C. before

You can go out, ______you promise to be back before 11 o'clock.

A. even though

B. ever since

C. as far as

D. as long is

________ three days to go before the exams, shouldn’t you work harder？

A、In

B、Within

C、By

D、With

You can go out, ____________ you promise to be back before 11 o’clock.

A、as far as

B、as long as

C、as well as

D、as soon as

Knock at the door, before you ________ the room.

A. enter into

B. come in

C. go to

D. enter

A.before

B.until

C.where

D.as

A.before

B.since

C.until

D.for

____ three days to go before the final exams, shouldn’t you work harder？

A: In

B: On

C: By

D: With

We shall go to Shanghai on business before you _____back next week.

a、will come

b、came

c、would come

d、come

You can go out,()you promise to be back before 12 o'clock.

A. so far as

B. as far as

C. as long as