摘要：2． Revise when to use the Past Perfect Tense and the verb structure of it． The Second Period
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--- My dad bought me a new MP4 player, but I don’t know .
|
A．what to use |
B．what to use it |
C．how to use it |
D．when to use it |
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We can use QQ to talk with each other online.
--Good! Will you please show me ______it?
A.what to use B.how to use C.when to use D.where to use
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--- My dad bought me a new MP4 player, but I don’t know .
| A．what to use | B．what to use it | C．how to use it | D．when to use it |