—You are always on time for everything. How ________ it be that you were late for the meeting this morning?
—Something went wrong with my car. But I didn’t know it before I left home.
A.should B.could C.might D.must
—It’s already three o’clock. Why hasn’t my father shown up?
—He called just now and promised he__________ at three. He should be here in any minute.
A.will arrive B.has arrived C.would arrive D.had arrived
All the flowers have come out. The sweet smell ______ the whole room and makes me comfortable.
A.spreads B.fills C.covers D.rushes
—Why did he make no ________ to be understood or liked?
— He didn’t care what others think of him.
A.risk B.balance C.suggestion D.effort
If the customer rings up for me again, please ________ the call to the sales department.
A.run through B.look through C.put through D.go through
There is no way of knowing why one man makes an important discovery ________ another man, also smart, fails.
A.since B.while C.as D.if
