问题
The forests are getting fewer and fewer. We must _________ down too many trees.
A:S+V+P
B:S+V+IO+DO
C:S+V+DO+OC
D:S+V+O;
B:S+V+IO+DO
C:S+V+DO+OC
D:S+V+O;
正确答案是：
同类题型
________ do you usually do when you are free –I often read something interesting.
I want to buy so beautiful a car he has.
Most of the roads were covered with thick snow, ____ made our journey more difficult
why can’t I have _____ new bike—Dear, you know, ______ money doesn’t grow ontrees.
Can I speak to Mr Wang?–Sorry, he’ s out. Can I _____ a message?