What’syourquestion?Iwanttoknow

--- What’s your question?
---I want to know _________.

A．how can trees help us	B．how do trees help us
C．how trees help us	D．how can we help trees

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相关试题

--------I often have hamburgers for my breakfast.
--------You’d better not. It’s bad for you _________ too much junk food.

A．eat

B．to eat

C．eating

D．ate

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We all love our English teacher, He always makes his English class very ________.

A．interest

B．interests

C．interesting

D．interested

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Last night Dad and Mum didn’t come back home ________ I finished my homework.

A．while

B．if

C．until

D．and

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Work hard, ___________ you’ll get good grades.

A．but

B．and

C．so

D．or

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The people were afraid, because the tiger had escaped _________ the zoo.

A．from

B．on

C．to

D．of

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