May I speak to the headmaster—-He ______ a meeting now. Can I take a message

We’re going on a holiday if it ______ tomorrow.

They often chatted about the hardtimes______they spent together in the old days.

The company had about 20 notebook computers but only one third ________ used regularlyNow we have 60 working all day long[ ]

The man was hit the head a alone while traveling in the mountain