—I can’t stop smoking, doctor.
— For your health, I’m afraid you ______.
A.may | B.can | C.have to | D.need |
—______ you help me mend the radio?
—Yes, I can.
A.May | B.Might | C.Must | D.Can |
There is ______ wrong with this computer. It doesn’t work.
A.something | B.anything | C.everything | D.nothing |
Parents often ask their children _____ their Internet friends because they may be in danger.
A.to meet | B.to not meet | C.meeting | D.not to meet |
Look left and right before you ________the road.
A.across | B.cross | C.through | D.though |
Some of the students are nearsighted______they spend too much time watching TV or playing online games.
A.when | B.though | C.because | D.unless |