单项选择题

—— Do you see why he hasn’t turned up yet？ —— Sorry, I don’t know _______.

A．what the matter is　
B．how matters stood　
C．what is the matter　
D．how is the matter
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单项选择题
More than one teacher _______told him it is important that he learn English well if he _______abroad.
A．had； will go　　
B．has； wants to go 　
C．has； want to go
D．have； shall go
单项选择题
She was so angry at all ____he was doing _____she walked out without saying a word.
A．that， that 　　　
B．which； that 　
C．what； as 　　　
D．that； which
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