--- Mum, why don’t you have the robot ________ housework for you?--- Oh, it caught a virus. I should have it _________ at once.
The headmaster stopped ____ to me because there was a call for him.
We ____ to Nanjing next month.
Next time don’t forget ____ your son here.
I’m ___ I can’t go with you.
---Would you like to come? ---Thank you. ____, but I’m busy.