I’ll go swimming with you if I ________ free tomorrow.
A. will be
B. shall be
C. am
D. was
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You should finish your lessons _______ you go out to play.
A. before
B. after
C. when
D. while
_______ I felt very tired, I tried to finish the work.
Although
Because
C. As
D. As if
I was ____(convince) that we were doing the right thing.
The medicine is ____(on sale) at any chemist’s. You can get it easily.