问题
选择题
I can't help _____ the cleaning _____ I'm busy mixing up some dumplings now.[ ]
A. doing, because
B. to do, now that
C. doing, since
D. to do, therefore
答案
答案：B
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I can't help _____ the cleaning _____ I'm busy mixing up some dumplings now.[ ]
A. doing, because
B. to do, now that
C. doing, since
D. to do, therefore
答案：B
