The students were supposed to （ ）their assignment by now.
A.finish B.have finished C.finishing D.having finished
Daylight saving time was instituted to increase productivity.
A.reorganized B.started C.encouraged D.taught
Today these superstitious practices are no more, but their influence （ ）in the minds of many people.
A.carries on B.lingers on C.moves forward D.goes forward
Although the body is made up of many different tissues, these tissues are arranged in an（ ）and orderly fashion.
A.incredible B.intricate C.internal D.initial
Marry （ ）my letter; otherwise she would have replied before now.
A.has received B.ought to have received C.couldn't have received D.shouldn’t have received
The Queen’s visit to China was largely（ ） . But it ended an unhappy chapter in the relationship.
A.synthetic B.representative C.international D.symbolic