（一）1. Their happiness was very_.A. crisp B. brittle C. delicate D. Fragile2. I was awfully tired when I got home from work, but a half hour nap _me.A.revived B. released C. Relieved D. recovered3. We should always keep in mind that_decisions often lead to bitter regrets.A.hasty B. instant C. prompt D.rapid4. Information and opinion gap exercises have to have some content _talking about.A. Worthwhile B. worthily C. worth D. worthy5. “If we fail to act now,”sa
