英语改错习题求解答The new technique A(calls for) B(heating) the mixture before C(applied) it to D(the wood )以上这句话 哪里错了 ABCD?

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英语改错习题求解答ThenewtechniqueA(callsfor)B(heating)themixturebeforeC(applied)ittoD(thewood)以上这句话哪里错了ABCD?英

英语改错习题求解答The new technique A(calls for) B(heating) the mixture before C(applied) it to D(the wood )以上这句话 哪里错了 ABCD?
英语改错习题求解答
The new technique A(calls for) B(heating) the mixture before C(applied) it to D(the wood )
以上这句话 哪里错了 ABCD?

英语改错习题求解答The new technique A(calls for) B(heating) the mixture before C(applied) it to D(the wood )以上这句话 哪里错了 ABCD?
C applied→applying
因为apply这个动作的发出这是人,人把混合物涂在木头上,所以应该用主动的ing形式来引导
这项新技术需要人们在加热混合物之前先把它涂在木头上

C错了,应该是ing而不是被动式!

C
applying
与前面heating一致

Obviously,C should the the answer be,
In this sentence "applied" has it after it,so it is an active form,while "before" is a preposition,so "applied" should be changed to "applying".