—Sid is never happy when he has nothing to do.
―I know. ______.
A.He has good taste B.He has done very well
C.It really bothers him D.It's none of his business
Charlie's wheelchair ______ out of power. He drove it into my office and looked for a place to charge it.
A.run B.have run C.had run D.was running
Chinese students overseas are encouraged to return, ______ they honestly fill out medical forms and strictly follow the quarantine rules.
A.though B.as long as C.unless D.the moment
There are over 50,000 signs in modern Chinese but luckily, Chinese children ______ learn all of them for everyday purpose.
A.needn't B.mustn't C.can't D.won't
The weather here is great, with temperatures ______ from a low of 55°F to a high of 75 °F in the summer.
A.range B.ranged C.to rang D.ranging
Physical labour can exhaust the body very quickly. ______, too much study can rapidly reduce mental powers.
A.Otherwise B.Equally C.Finally D.Additionally
