Helen is on time for everything. How ______ it be that she was late for such an important interview?A. might B. can C. must D. may
He's __________ to fail the exam if he doesn't do any revision.
The doctor said he must avoid excitement in order for the disease to __________.
Microscope will __________ much that cannot be seen with the naked eye.
He __________ fine new clothes than for anything else.
—According to my grandma, it is a good idea to eat chicken soup when you have a cold. — __________, scientists agree with her.