It was the first time _________ we had done the experiment.
A: that
B: since
C: before
D: when
A: that
B: since
C: before
D: when
举一反三
- It was the first time ____ we had done the experiment.
- “It is a long time ______ I saw you last.”“Yes, and it will be a still longer time ______ we see each other again.” A: before/since B: since/before C: then/then D: when/when
- It was some time ____we realized the truth. A: when B: until C: since D: before
- Was it six years ago _______ we met for the first time? A: which B: When C: since D: that
- We had to be patient because it _______ some time _____ we got the full result. A: has been; since B: had been;until C: was; after D: would be; before