问题
选择题
Please _____ the numbers and I'm sure they will _____ more than 1,000. [ ]
A. add up; add
B. add up; add up
C. add up; add up to
D. add; add up
答案
答案：C
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Please _____ the numbers and I'm sure they will _____ more than 1,000. [ ]
A. add up; add
B. add up; add up
C. add up; add up to
D. add; add up
答案：C