第18题: [填空题]In the past few years, traffic problems (become) ______ more and more serious. 参考答案:have become 答案解析:[解析] 动词时态。in the past few years作时间状语时,要求句子用现在完成时.另外,主语traffic problems为复数,因此,空格处填have become。
第30题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. Go to sleep. B. Watch the film later. C. Change the channel. D. Set the alarm clock. 参考答案:A 答案解析:[听力原文]
M: I’m really exhausted, but I don’t want to miss that feature film that comes on at midnigh