问题

he head of the company promised to deal with matters of this sort ________ he returned to his office[ ]

A: until
B: while
C: by the time
D: the moment

正确答案是：

同类题型

As we all know, computer games with fightshave bad effects _______the teens.

He lost a valuable watch But when I wanted to comfort him, he said, “_____”

y after the book Uncle Tom’sCabin________, the Civil War of America________.

What would you like _______—Sorry, I don’t feel like _______.

We put _____ our tent and began to sleep in it, but I really couldn’t put _____ the heat in the tent.