Look at the children over there
．
What __________
？
A
．
do they do
B
．
are they doing
C
．
they are doing
D
．
is he doing
选择：B.
Look at the children over there.
What are they doing?追答
Look at the children over there.
What are they doing?追答
有问题可以追问
追问我是选b的 但是我觉得c可以 但是 是不是错了用法
追答嗯
按提问的方式，有be动词要把be动词提前
比如：Where are you?
Where is the cat?
如果是非提问的引用句，则可以用C的方式，或者说B与C两种方式都可以。
比如：
Can you tell me where she is?
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