【2015·安徽】______ scientists have learned a lot about the universe, there is much we still don't know.
The peace-keeping Chinese officers are still serving in Haiti ______ the continuous aftershock activities.
We had to ______fate, seeing that we could do nothing to help ourselves.
---I have some big news for you. You have been admitted into our club. ---_______. That’s great!
I can’t say which wine is best . It’s a(n) ______ of personal taste.
Would you mind telling me what problem she had _________ the plan?