天气现象不记起止时间的有()种。
A.8
B.9
C.10
参考答案:C
If the project ________ by the end of this month is delayed , the company is sure to pay a large sum of money for it .
A.completed
B.completing
C.to be completed
D.having completed
集体是由许多人集合起来的有_______、有_______和_______的团体。