问题

If you can’t work out the math problem, you can ask your teacher ___some____.
A:on ; help
B:for ; helps
C:on ; helps
D:for; help;
B:for ; helps
C:on ; helps
D:for; help;
正确答案是:
同类题型
In the picture you can see a boy swimming. His father ___________ him.
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When he knew the disappointing result of the exam, he seemed quite_______