The students are clever. They have no problems _____ out the math problem. [ ]A. work B. working C.

题目简介

The students are clever. They have no problems _____ out the math problem. [ ]A. work B. working C.

题目详情

The students are clever. They have no problems _____ out the math problem.

[     ]

A. work
B. working
C. works
D. to work
题型:单选题难度:中档来源:福建省期中题

答案

B

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