I don’t know how many years ago _______people began to stay at home and civilization began.
A: it was when
B: it was that
C: was it that
D: was it when
A: it was when
B: it was that
C: was it that
D: was it when
举一反三
- I don’t know ____ to learn English. A: when did he begin B: when he began C: he when began D: when he begins
- 4. I don’t know _________ to learn English. A: when he begins B: when did he begin C: when does he begin D: when he began
- It was __ I met Mr. Smith in London. A: many years that B: for many years since C: many years ago that D: since many years ago when
- I’d like to know ________ Chinese. A: when he began to learn B: when did he begin to learn C: when did he begin learning D: when did he began learning
- I was about to________(leave) home when it began to rain outside.