—What______you _______at ten o' clock yesterday﹖ —I_______ in class.
A、were doing studied
B、was doing was studying
C、were doing was studying
D、was doing studied
It was 12 o'clock ______the plane took off.A. whenB. thatC. sinceD. till
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You can go out,()you promise to be back before 12 o'clock.A. so far asB. as far asC. as long as
下列不能从“yesterday”中取出字符串“yes”的函数是()。A、MID(“yesterday”，1，3)B、LEFT(“yesterday”，3)C、MIDB(“yesterday”，1，6)D、RIGHT(MID(“yesterday”，1，3)，3)
The plane is scheduled to () at 4 o'clock.A、take upB、take offC、take onD、take out
If you __B_to the railway station by 3 o’clock ,you must hurry.
You can go out, ____________ you promise to be back before 11 o’clock.A、as far asB、as long asC、as well asD、as soon as
You can go out, ______you promise to be back before 11 o'clock.A. even thoughB. ever sinceC. as far asD. as long is
