His father _____ to Nanjing. He _____ back next week.A. has been, is B has been, will beC. has gone, is D. has gone, will be
I think _____necessary _______ to take more exercise.
I take exercise every day and I’m _______ than before.
--- _____ does Kate live from her office? ---It’s half an hour’s ride.
The price of this computer is the ____ of the three.
---Be careful,don’t forget to follow your father. ---I know that, Mum. One can never be too careful.