23、As is said, it won't be long ____we participate in the 4^th Huaian United Exam.

A. since                   B. when          C. before           D. that

22、Look, ____ the children are having in the games!

A. what a fun     B. what fun    C. how funny    D. how fun

21、 ---Have you read the timetable ?   ---Yes . The train ____ at 10:12 p.m..

A. will start   B. is going to start   C. should start     D. starts

20、The sign reading "No Photos" means that no one ____ take any photos in the Palace Museum.

A. need                    B. might          C. must            D. shall

19、The little boy entered the classroom without ______.

A. noticing     B. noticed     C. being noticed     D. notice

18、 -- Well, an apple pie, a salad, and anything ____, sir?

-- A soup, please.

A. to follow      B. follows          C. followed        D, following

17、-- I'm not feeling very well, Barton. To tell you the truth, I'm tired of the present life.

-- I suggest you do some ____ exercise to keep fit.

A. normal          B. general            C. common        D. regular

16、Taobo is Asia's largest retail（零售的） network platform, ______ people can buy and sell many kinds of things．

       A．where              B．when          C．that        D．whose

15、Remember _____ the lights when you leave the house.

A. to turn off     B. turning off    C. to turn on      D. turning on

14、—How do you find the health club?

       —I ______ . Everyone is saying its management is going from bad to worse.

       A．ought to join                    B．should have joined

       C．would rather not have joined        D．would like to have joined