Differences in speech can lead to ______.

A.dialects
B.changes
C.new concepts
D.misunderstanding

Language ______.
A.frequently changes
B.is the same in almost every part
C.makes misunderstanding happen
D.makes people change

An eyewitness described how ten people (kill).............. in the fire.
A.have been killed
B.had been killed
C.killed
D.should kill

(call)..........., the milkmaid went to see the farmer.
A.to call
B.calling
C.called
D.being called

She (be)............ here but she (go).......... down with flu.
A.should have been - has gone
B.would have been - has gone
C.should have been - went
D.would be- has gone

Although his family is poor, but he studies very well.
A.is
B.but
C.studies
D.well

_______(37)
A.changing
B.transferring
C.exchanging
D.giving

_____(39)
A.have
B.have had
C.are having
D.had

________(40)
A.so much
B.such much
C.so many
D.too much

That factory is producing more and more pollution.
A.Pollution is being produced more and more by that factory.
B.More and more pollution is produced by that factory.
C.More and more pollution are being produced by that factory.
D.More and more pollution is being produced by that factory.