Had he taken his parent’s advice, he ______ having made such a silly mistake now.
A. would not regret B. would not have regretted
C. may not regret D. does not regret
Just when we are going to have a holiday, my little son ________ have a headache.
A. dare B. can
C. may D. must
This kind of virus _______ via the bloodstream and causes ill health in a variety of organs.
A. corresponds B. circulates
C. abandons D. accelerates
People from all walks of life are eager for success, ______lack of confidence, however, is a great barrier.
A. where B. which
C. to which D. beyond which
Important _______ having an ambition is, it must be channeled in the right direction. Otherwise, it would ruin ourselves and others.
A. though B. if
C. when D. while
The suspect couldn’t ______ the fact that his finger-prints were on the knife.
A. refer to B. subscribe to
C. account for D. make up
