This test ___________ a number of multiple choice questions.
| A．is consisted of | B．consists of | C．compose of | D．is made of |
20．Always read the label ______ you wash your clothes．
| A．before | B．unless | C．since | D．Until |
18．T appreciate that it's not easy for you, but you ______ try to get here on time．
| A．may | B．must | C．will | D．Can |
17．—Sorry we're late．We ______ the wrong turning．
—That's all right．Come in, please．
| A．take | B．have taken | C．took | D．had taken |
第二部分：知识运用（共两节，45分）
第一节：单项填空（共15小题，每小题1分，共15分）
从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。并在答题卡上将该项涂黑。
16．You can try to guess the meaning of ______ words you don't know from ______ passage．
A．the; 不填 B．the; the C．不填;不填 D．不填; the
19．—Flight 331 _____．I'd better be on my way．Goodbye．
—Bye．Happy landing!
| A．is announced | B．is being announced |
| C．is announcing | D．has announced |