I want to know __________ cars.
A. how to repair
B. repair how to
C. how repair to
D. to repair how
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________ a light if necessary. You will bring light to other people and yourself.
A. Put on
B. Get on
C. Try on
D. Turn on
Do you want to be healthy. can help you.
A. Smile
B. Smiling
C. To smile
D. Smiled
What should I do if I want _______ the next song?
A. listen to
B. to listen to
C. listen
D. to listen
光合作用的光反应发生的部位是在()。
A. 叶绿体基粒
B. 叶绿体间质
C. 叶绿体膜