He set off down the main street. He _____.
A.ran | B.walked |
C.rode | D.started his journey |
The Sanlu Milk Powder event is a clear indication that food safety is a big problem; nobody can ___ all foods are secure to us, but we are sure that the situation is turning for the better.
A.acknowledge | B.guarantee | C.identity | D.clarify |
—I am going to travel to America.Would you consider telling me about your experiences there?
—__.Let's discuss it over dinner.
A.That's all right | B.Go ahead |
C.By all means | D.It just depends |
I don't think the experiment is ___ failure, because it has provided us with ___valuable experience for our future tests.
A.不填; 不填 | B.不填; a | C.a; a | D.a; 不填 |
---I’m sorry! I would have taken him to hospital if I had known he was seriously ill.
--- But ______ .
A.you didn't | B.you hadn't | C.he wasn't | D.you aren't |
Rock-climbing is a breathtaking activity, very popular nationwide among young people, ______ cooperation as well as courage plays an important role.
A.who | B.which | C.where | D.of which |