By the time new pupil _______ enough courage to raise his hand , the bell for the end of the lesson _______.

A had gathered ; was already ringing                 B. was gathering ; had already rung

C gathered ; already rang                                 D. would gather ; would already have rung

--Did you go to Beijing for vacation ?

--I _______ to go , but I got sick at the last minute.

A was planning              B. have planned

C. had been planning      D. have been planning 

--When will they leave ?

--They _______ very soon .

A do leave                     B. are leaving

--Was he studying for an exam ?

--Yes , he's _______ it next week.

A doing                         B. to take

C. making                     D. to give

She must have arrived there last night , _______ she ?

A didn't                         B. haven't

_______ the letter , I ran out of the room to the post office.

A Since I have finished writing                         B. No sooner than I had finished writing 

C As soon as I finished writing                         D. After I have finished 

Twelve inches _______ one foot.

A will make                   B. is making

C. makes                       D. make 

I _______ going to London next month.

A have thought of           B. shall think of

He _______ English for six years by the time he takes his examination.

A has studied                                                  B. studied

C. will have been studying                               D. had been studying 

By this time next year he _______ from this college.

A is graduating                                                B. will have graduated