If I ______ about this computer program, a hage amount of time and energy would have been saved.
A．know B．knew C．had known D．have known
It doesn’t ______ if you are late to my party. I just want you to come
A．make a decision B．make a choice
C．make a change D．make a difference
The man is notreliable, for he seems ______ frankness.
A to lack in B. to be lacking in C. to lack of D. to be lacking of
The best reporter was sent to the front to _______ the campaign.
A．set B．cover C．settle D．deal
His father got him a jib in a bank but soon it became clear ______ he was not fit for that kind of work .
A．that B．why C．what D．whether
It sounds like something is wrong with the car’s engine. ______, we’d better take it to the garage immdiately.
A．Otherwise B．If not C．But for that D．If so
