摘要：( ) I don’t know with this problem. It’s too hard. A. how to do B. when to do C. what to do
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--I don't know ________ with this problem. It's too hard.
--You can ask Mr Wang for help.
[ ]
|
A ．which to do |
B ．when to do |
C ．what to do |
D ．how to do |
I don’t know with this problem．It’s too hard．
A．which to do B．when to do C．what to deal D．how to deal
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I don’t know with this problem．It’s too hard．
| A．which to do | B．when to do | C．what to deal | D．how to deal |