I had decided to give it up ,but on _____second thoughts,I decided to try _____third time.
All the students______ laughter when David walked into the classroom like Donald Duck.
Practice makes perfect. ______Mr Black passed the driving test easily.
— There is still a copy of the book in the library. Will you go and borrow ______? — No, I’d rather buy ______ in the bookstore.
It is reported that the scientists in our county are______all possible ways to control H1N1 flu.
— How about ______ Christmas evening party? — I should say it was ______ success.