Question

she looked up the number in the phone book to _______ that she got it right.

A. work out B. try out
C. make sure D. think about

Answer 1

选C
解析：首先你要明白这句话的额意思：他查找电话本，以确保她是对的
work out 想出；解决 try out试验；试用 think about 考虑 ；很明显这三个不合题意

绝对正确，希望帮到你，祝学习进步

Answer 2

C make sure 确认，确保

Answer 3

C 确保，保证 make sure 接从句
望采纳！

Answer 4

选C 确保