He came at a time ______ we need his help.
A: where
B: why
C: when
D: of which
A: where
B: why
C: when
D: of which
举一反三
- It was not until his mother came back _____ he went to bed. A: where B: that C: which D: when
- He will never forget the days ______ he spent with his grandma. A: when B: that C: where D: on which E: why
- This is the place ______ we come every summer. A: which B: why C: where D: when
- He was looking forward tothe time he would have to attend the interview. A: where B: that C: why D: when
- It was in China _____ he spent his childhood. A: where B: when C: in which D: that