The verb to be is unique among English verbs in having different forms: am, is, are/ was, were/ shall be, will be. Ex. 1. Supply the correct form of the Present Tense of "to be".

1. He ... a customs officer. Flight 523 ...full. I ... in the airport now. This ... non-stop flight. We ... at gate 5 now. The weather today ... good. Today ...Monday. The number of our flight... 198.

She and I... air hostesses. Mr Parker ... airsick. It... a long-distance flight. Travelling by air ... faster. They ... on the plane now. Her brother ... a pilot.

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