问题
选择题
I think you should _________, or he may forget about it.[ ]
A. call up him
B. call him up
C. to call him up
D. to call up him
答案
答案：B
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I think you should _________, or he may forget about it.[ ]
A. call up him
B. call him up
C. to call him up
D. to call up him
答案：B