I’m glad I went over all my notes; otherwise _____ .
The impact of Einstein’s breakthrough in the field of photo electric effect ____ the understanding of the universe was simply tremendous.
– Oh my god, I left my laptop in the taxi!– _____; let’s call the taxi company first.
I don’t say I am against their plan. But the trouble is _________ they do doesn’t agree with what they say.
Could I just ask one question about the plans for a new building _____ at the beginning?
---Did the policeman let you in?---No, I told him who I was.