How long may I this book —About two weeks.

Could you give me an explanation ______ your keeping silent throughout the discussion?-Oh, terribly sorryI had the least idea of what ________I would have made a complete foolofmyself if I had said anything[ ]

65.Is＿necessary to tell his father everything

It’s rather cold in most of South China____ in spring.

Sarah made ______ to the airport just in time to catch her plane this morning.