. Had I known about this computer program, a huge amount of time and energy __ .
A. would have been saved B. had been saved
C. will be saved D. was saved
. It is uncertain __ side effect the medicine will bring about, although about two thousand patients have taken it.
A. that B. what C. how D. whether
The experiment shows that proper amounts of exercise, if __ regularly, can improve our health.
A. being carried out B. carrying out C. carried out D. to carry out
I guess we've already talked about this before but I'll ask you again just __ .
A. by nature B. in return C. in case D. by chance
I have been convinced that the print media are usually more __ and more reliable than television.
A. accurate B. ridiculous C. urgent D. shallow
ff you plant watermelon seeds in the spring, you __ fresh watermelon in the fall.
A. eat B. would eat C. have eaten D. will be eating
