Who is the student on the playground—Andy. _________ often takes a walk with _________.

Did you have a chat with Tom?—No, I was trying to ________ an opportunity to do so, but I couldn’t.

Li Gang, a police officer said that little about what his son _____ he know the moment all the media reported the traffic accident _____ in Hebei University．

English is very important. so I practise ____ it very hard .

Mum, could you buy me a dress like this? — Certainly, we can buy _______one than this, but ________this.