The changes of the plants and animals in an area ________ from differences in climate and the           nature of the country.
#99115
A
rise
B
raise
C
arouse
D
arise
推荐题目
I ________ for Beijing next Saturday. Do you know when the earliest plane ________ on  Saturday?
#99485
A
am leaving; takes off
B
Leave; takes off
C
leave; is taking off
D
am leaving; is taking off
The house is dirty because it  since they moved out.
#100966
A
doesn’t clean
B
isn’t cleaned
C
hasn’t cleaned
D
hasn’t been cleaned
—— Ann is in hospital.____ Oh ,really? I ______ know. I ______ go and visit her.
#102975
A
didn’t, am going to
B
don’t , would
C
don’t, will
D
didn’t, will
 The wet weather will continue tomorrow when a cold front ________ to arrive.
#99750
A
is expected
B
is expecting
C
expects
D
will be expected