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参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】－I can't walk any longer, Mum. －Why? _____, dear?[ ]
A.
What has happened to you
B.
What did you happen
C.
What have you happened
D.
What is happened to you
【单选题】Since the beginning of this year no issue _____ yet.[ ]
A.
is published
B.
has been published
C.
will be published
D.
was published
【单选题】Let’s take a walk for supper, ______ ______?
A.
shall we
B.
will you
C.
will we
D.
are you
【单选题】—What's that in the tree? —There must _ some birds _ _ in it. [ ]
A.
are, sitting
B.
be, sit
C.
be, sitting
【单选题】We spend two hours_____ _____English every day. [ ]
A.
practise, saying
B.
to practise, talking
C.
practising, speaking
D.
practising, speak
【单选题】We are so sorry to hear a big earthquake hit the northwest of Sichuan _____May 12. [ ]
A.
at
B.
from
C.
in
D.
on
【单选题】After finishing your homework , you should look it .[ ]
A.
doing；at
B.
to do；for
C.
doing；through
D.
to do；after