—Tony, you must have noticed the student who broke the window. —I’m sorry. I _______ attentively.
They spent the afternoon _________ in the street, not knowing what to do.
If you say that someone is ________ for a shock or a surprise you mean that they are going to experience it.
We wouldn’t go abroad for our vacation _______ we could afford it.
We can’t wait. We have to_______ the direction and the distance before we take action.
Jenny hopes that Mr. Smith will suggest a good way to have her written English ________.