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【单选题】
—What does your mother do ? —She is a _______. She teaches English in a high school. [ ]A.
teacher
B.
nurse
C.
cook
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皮皮学刷刷变学霸
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【单选题】all his courage, he invited Celine to get off the train with him．
A.
To gather
B.
Gathered
C.
Gathering
D.
Being gathered
【简答题】常见的窒息性气体有哪些？
【简答题】井下常见的有毒有害气体有哪些?
【简答题】矿井中常见的有害气体有哪些？
【单选题】Henry set up a club for football fans, ________ he invited all his friends．
A.
for whom
B.
to whom
C.
to which
D.
from which
【简答题】常见的刺激性气体有哪些?
【单选题】all his courage, he invited the lady to get off the train with him.
A.
Being gathered
B.
Gathered
C.
To gather
D.
Gathering
【简答题】He invited all his ______ to join in his wedding party. A) comrades-ins-arms B) comrades-in-arm C) comrade-in-arms D) comrades-in-arms
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