1 Professor Smith and Professor Brown will _____in giving the class lectures
A...alter C....alternate
答案是B,但这两个不都有改动的意思吗,有什么区别么
2 The blue lines on the map ___for roads
A...represent B...express C....reveal D...expose
答案B,,,,AC呢
3 The government ____money into basic construction such as highways and telecommunications the latest ten years.
A...has put B....has been pumping C....has pulled D ....has provided
答案C ,,A呢?句子怎么改可以用B?
4 In reading stories we anticipate what is to come _______on our memory of what has gone before
A...based B.... basing C......to base D.....to be based
答案是A,为什么不选B,我认为应该是we base....on
坐等谢谢!!!!!!!!