(2013·江西南昌一模)Why ________ it get colder when we climb up a mountain? We are getting nearer to the sun!
#86580
A
ought to
B
would
C
should
D
must
推荐题目
—He should have come to join in the thorough cleaning. —He ________, I think. It's not his turn. 
#90299
A
needn't have to
B
needn't have
C
didn't have to
D
doesn't need to
 If you______to her about it yesterday, you ______ what to do now. 
#86633
A
should have spoken; would know
B
spoke; would know
C
had spoken; would have known
D
had spoken; would know
The teacher highly recommended that I ___________ more to improve my English.
#87676
A
would practice
B
could practice
C
practice
D
practiced