The secretary worked late into the night, ___________ a long speech for the international conference. [ ]

r your timely warning, we ___have been unawareof the danger. Thank you very much!

______ I admit that there are problems, I don’t agree that they cannot be solved

I don’t think it was an accident at allYour brother did it _____

The trip to Dongshan was really interesting. We picked a lot of yang mei.-_______, I agree with you, but there was too much traffic on the way and I felt sick.