问题
Doctor Smith has made another wonderful discovery, _______ great importance.
A:which I think is of
B:which I think it is of
C:which is I think
D:I think which is ;
B:which I think it is of
C:which is I think
D:I think which is ;
正确答案是：
同类题型
was the car invented–It was invented in 1983.
How did you know you had pass the exam—–The teacher’s smile______ that.
Ｉhear Peterson was badly injured in the accident.——____ . let’s go and see him.
eme, I wonder if you can help me—Sure_______
This kind of CD-ROM is very popular. Why notbuy one before it________