“I don’t know whether to take that mathematics course or not .”

“ If ______you , I’d take it.”
A.I am
B.I will be
C.I had been
D.I were

“My car broke down when I was leaving Detroit and I had to take the bus .”

“______, we would have picked you up”
A.Had we known
B.If we have known
C.We had known
D.If we did known

If I _____as young as you are , I _____in a boat round the world.
A.were----would sail
B.would be----would sail
C.were-----will sail
D.would----would sail

She_____tennis if it _____not so hot.
A.would play----were
B.would play----would be
C.will play -----were
D.would play---is

Where ______if you_____on leave ?
A.did you go----were
B.would you go ---- were
C.would you go-----are
D.will you go ------were

If the chair _______break, Paul can fix it for you.

A.might
B.should
C.may
D.can

If the car ____ larger,we would have bought it.
A.had been
B.has been
C.have been
D.been

If I had taken that English course, I ____much progress.

A.had made
B.would have made
C.made
D.would made

If I were in your place, I ____a trip to England.
A.will make
B.would have make
C.would make
D.made

If you _____as I told you, you ____in such predicament now.
A.did----wouldn’t be
B.had done----had not been
C.do----would not be
D.had done----would not be