He _______ you an e-mail as soon as he ________ a plan.

Cathy, when can I expect you to return to work? —I’ll go back to my job once I’ve who’s going to look after the kids during the day.

e they usually receive the same score in theexams, there’s often disagreement as to ______ is the better student, John orMary

___ with a gradual rise of seawater, some nations in the Pacific are considering moving in the near future[ ]

You must keep your eyes ________.