:Review of Units 3-4 综合能力演练 【巩固练习】 Ⅰ. 单项选择。（15分，每题1分） 1. John didn’t give up looking for a job __________ he got an offer from a German company. A. until B. since C. because D. if 2. —I called you yesterday evening, but nobody answered. —Oh, ______ at that time. A. I’m cooking B. I cooked C. I cook D. I was cooking 3. －Can I bring a friend to your birthday party? －Sure, ______ . A. no problem B. not at all C. my pleasure D. well done 4. —Does Ted tell you ____ he will come next week? —No, he doesn’t. But ____ he comes, I’ll give you a ring. A. if; whether B. whether; whether C. if; if D. if; until 5. —How careful Jim is! —He writes ____ in our class. A. more careful B. most carefully C. mo
