---- You should be _______ careful when you take the chemistry exam.---- I agree. In this way, I will make _______ mistakes.
A number of birdwatchers ______in Zhalong Nature Reserve. The number of them____500.
Tom swims __________ than I, but he doesn’t swim_________ my brother.
--- Do you know ________ girl in pink on the playground? --- Oh, yes, she is ________ honest student. She is my best friend.
weather it is today!
Do you know ______ this time yesterday?