很有意思,
1.____that snow men were often spotted on the mountainside above 7000 meters by the local in havitants .
a.It was used to be saying
b.It used to be said
c.It used to say
d.It was used to saying
请问哪一句是对的啊?并说出为什么
2.Water will continue to be ____ it is today ____ next in important to oxygen.
a.how
b.which
c.as
d.what
3.The professor could hardly find sufficient grounds ___his arguments in favor of the new theory.
a.to be based on
b.to base on
c.which to base on
d.on which to base
to base on on which to base 这两句应该都对啊.
4.Basic reaearch provides the capital fund scientific knowledge ___which the applied researchers draw to give society a rich rate of interest.
a.on
b.out
c.up
d.back
请问答案是哪个.并翻译.
第二题...有两个空呢..两个都填HOW么?
第三题....IN WHICH TO DO 有两种形势...
IN WHICH TO DO TO DO IN AND IN WHICHI 加从句