22、请根据下面提示，写一篇短文。词数不少于50。

In your spoken English class, your teacher shows you the following picture. You are asked to describe the picture and explain how you understand it.

21、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

20、—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

19、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

18、—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

17、Always read the label ______ you wash your clothes．

A．before          B．unless         C．since        D．until

16、      __ sweet and fresh, this kind of food is so popular with local people and the tourists．

A．Smell         B．Smelling          C．To smell        D．Smelt

15、Here are some new computer programs _____ for home buildings．

A．designing           B．design         C．to design         D．designed

14、I had reached a point in my career _____ I needed to decide which way to go．

A．why               B．which         C．when          D．where