——The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job? ——____ Tom have a try?
—My teacher punished me this morning. —Why? You’ve done nothing wrong, ______ I can see.
I am really upset about tomorrow’s exam. I am always so slow. _______! You can pass it. You have been working hard on it, haven’t you?
The heavy rain ______ us ______ going there.
No one can prevent the plan _____________.
It isn’t an excuse for your failure ___________ you didn’t know the rules