There is an important difference between humans and chimpanzees. Chimpanzees walk on four legs.
A.There is an important difference between humans and chimpanzees that walk on four legs.
B.Chimpanzees walk on four legs, so they are importantly different from humans.
C.An important difference between humans and chimpanzees is that chimpanzees walk on four legs.
D.There are important differences between humans and chimpanzees one of which is that chimpanzees walk on four legs.

Sequoyah devised an alphabet. Because of this, all the different tribes could read a common language.
A.Sequoyah devised an alphabet because all the different tribes could read a common language.
B.All the different tribes could read a common language which belonged to Sequoyah.
C.All the different tribes could read a common language that Sequoyah devised.
D.Sequoyah devised an alphabet whereby all the different tribes could read a common language.

After many years of unsuccessfully endeavoring to form his own orchestra, Glenn Miller finally achieved world fame in 1939 as a big band leader.
A.requesting
B.deciding
C.offering
D.trying

________(71)
A.near
B.enclosing
C.close
D.surrounding

They go to the seaside _______ they should be disturbed by the noise of the city.
A.in order that
B.for
C.so that
D.lest

Just keep________on the baby while I cook the supper, will you?
A.a look
B.a glance
C.an eye
D.a care

On _______ he had won, he jumped for joy.
A.telling
B.being told
C.he has told
D.having told

It‟s no _______ waiting for a bus, they don‟t run on public days.
A.good
B.point
C.worth
D.reason

She‟s not very _______. She is never quite sure what she wants to do.
A.decisive
B.active
C.lively
D.energetic

I know we had an argument, but now I'd quite like to _________.
A.look down
B.make up
C.fall out
D.bring up