31．I had traveled only two hours when the winds _________ so much that I had to put my

tent up ________ the winds became too strong.

A．were increasing, before　　　　　　　　　　　　 B．increased, when

　 　 C．increased, before　 　　　　　　　　　　　　　　　 D．had increased, when

30．I thought I was going to fail the driving test but I succeeded ________.

　 　 A．after all　　　　　　　 B．first of all　　　　　　 C．in all　　　　　　　　　 D．at all

29．_________ that I could use a kite to attract lightning, I decided to do an experiment _________ that lightning and electricity are the same.

　 　 A．Realized, showing B．Having realized, to show

　 　 C．Realizing, to show　　　　　　　　　　　　　　　 D．Having realized, showing

28．It’s important for you to be there on time. You _______ be there before 8:00.

　 A．may　　　　　　　　　　　 B．will　　　　　　　　　　 C．can　　　　　　　　　　 D．should

27．-Does that matter? Can’t you just wear a flower instead?

　 -No, I couldn’t do that. ________ else will __________ jewelry.

　 　 A．Everybody, have worn　　　　　　　　　　　　 B．somebody, wearing

　 　 C．Everybody, be wearing　　　　　　　　　　　　 D．anybody, wear

26．In my mind, ________ that famous university will be the only way to become a world-class writer.

　 　 A．attending　　　　　　 B．attended　　　　　　　 C．attend　　　　　　　　 D．having attended

25．Since Kwanzaa is a time for learning _________ joy, people celebrate it by lighting a candle each day and _________ one of the seven principles of Kwanzaa.

　 　 A．as well, arguing　　 B．as well as, discussing

　 　 C．except, speaking　 D．more than, talking　

24．When he was retired and went back home in ________, he was already in _______.

　 　 A．the fifties; his sixty　　　　　　　　　　　　　　　 B．fifties; his sixties

　 C．the fifties; his sixties　　　　　　　　　　　　　　 D．fifty; sixty

23．Our eating habits have changed, ________ has our way of life, and the fuel ______ we need for our body is also different.

　 　 A．as, what　　　　　　　 B．so, /　　　　　　　　　　 C．so, that　　　　　　　 D．as, /

22．-See _______ light in the sky?

　 -Yes, it’s moving fast. It must be ______ plane.

　 　 A．a; the　　　　　　　　　 B．the; /　　　　　　　　　 C．the; a　　　　　　　　　 D．/; a