We were swimming in the lake _______ suddenly the storm started.
- Could you please help me carry the box?- .
I’d like to join the school volunteer project, but I’m not sure ______.
- Have you read the advertisement which ______ a reporter?- Yes, I have.
This big bag is too heavy for the little boy ______.Who volunteers to help him?
My computer has broken down. I’ll get it _______ this afternoon.