His sister left home in 1998, and ______ since.
| A．had not been heard of | B．has not been heard of |
| C．had not heard of | D．has not heard of |
相关试题
----- Why was the student laughed at by classmates?
----- He must have _____ what the teacher said in class.
| A．recognized | B．grasped | C．mistaken | D．achieved |
The successful launch of Shenzhou VI ______ everyone involved in the space project making an effort.
| A．reminded of | B．cared for | C．relied on | D．called up |
---_________ ?
---I’m not sure, but he might have been ill in bed.
| A．What do you think has happened to Tom |
| B．What do you think Tom has happened |
| C．Do you think what has happened to Tom |
| D．Do you think what Tom has happened |
When you study the local map, you'll find this town is ．
| A．twice the size of that one | B．twice as a large town as that |
| C．twice as larger as that one | D．twice as larger a town as that |
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