Scientists say it may be five or six years _______ it is possible to test this medicine on human patients.
|
A．since |
B．after |
C．before |
D．when |
It is only ______ you understand what your parents do to you ______ you can improve your relationship with your parents.
|
A．that; what |
B．when; that |
C．which; where |
D．how; what |
---When did you get to know each other ?
----It was in 2008___ we spent summer vocation together.
|
A．that |
B．when |
C．before |
D．since |
______ of the land in Jia Xing No. 1 Middle School _______ covered with trees and grass.
|
A．Two third, are |
B．Two thirds, are |
C．Two third, is |
D．Two thirds, is |
As is known to all language learners, the newly learnt words will soon be forgotten unless______ used in everyday communication.
|
A．gradually |
B．loosely |
C．exactly |
D．frequently |
The last thirty years _________ the quick development in almost every field in China.
|
A．have searched |
B．have released |
C．have seen |
D．have determined |
