—Does he know how to work out the problem?
—Yes, he has _______ a good idea to solve it.
A.caught up with | B.kept up with | C.come up with | D.put up with |
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—Does he know how to work out the problem?
—Yes, he has _______ a good idea to solve it.
A.caught up with | B.kept up with | C.come up with | D.put up with |