You________ drink it, for it is poisonous.
I'll return the book to the library as soon as I________it.
This is the best dinner that I________.
—Isn't it hard to drive downtown to work?—Yes,that's why I________to work by train.
—Look!How long________like this?—Three weeks! It's usual here that rain________without stopping these days of the year.
He________Beijing,so he knows a lot about it.