问题
选择题
It was after he had worked on the project for months _____ he found how to solve the problem efficiently. [ ]
A. that
B. when
C. until
D. as
答案
答案：A
搜题请搜索小程序“爱下问搜题”
It was after he had worked on the project for months _____ he found how to solve the problem efficiently. [ ]
A. that
B. when
C. until
D. as
答案：A