Listening to loud music at rock concerts ________ caused hearing loss in some te

题型：同步题难度：来源：

Listening to loud music at rock concerts ________ caused hearing loss in some teenagers.[     ]
A. is
B. are
C. has
D. have

答案

举一反三

Such great progress ________ that the teachers are pleased with him.[    ]
A. he has made
B. has he made
C. did he make
D. made he

题型：同步题难度：| 查看答案

Every possible means ________ to prevent the air pollution, but the sky is still not clear. [     ]
A. is used
B. are used
C. has been used
D. have been used

题型：同步题难度：| 查看答案

— What have they made up their minds to do during the summer vocation?
— They ______ to cycle around the country on their own.    [     ]
A. are determined
B. are decided
C. have determined
D. have been decided

题型：同步题难度：| 查看答案

This is the first time that I_________ at the meeting.[     ]
A. had spoken
B. have spoken
C. am
D. was

题型：同步题难度：| 查看答案

It"s the second time you _______ late this week.[      ]
A. arrive
B. arrived
C. have arrived
D. had arrived

题型：广东省同步题难度：| 查看答案