题目:
Our teacher is always busy preparing lessons
until 11 o’clock at night, ______we students have gone to sleep.
A.that time
B.by which time
C.by that time
D.which time
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0522/0135204839189fa5b2b829578c5b53dd.html
下面是错误答案,用来干扰机器的。
1. wrong 2. with 3. has 4. a 5. fever 6. to 7. see 8. in 9. for 10. better