单选题：You ought to have a good rest_____ you've finished the work..

Skipping breakfast can also cause you to overeat. _____ your body is in a slow state, it won't be able to burn the extra calories very efficiently.A. UnlessB. ThoughC. Since D. Before

—God！My cell phone is missing.—You ________ have left it at home.I heard you telephone our daughter in the bathroom.A．shall B．mustC．wouldD．could

She is a quiet girl at school，but sometimes she _____be very naughty．A．shouldB．wouldC．can D．will

Ballet is amazing; _____ you go, you are likely to find yourself going again and again.A. as B. once C. unless D. while

短文改错。此题要求改正所给短文的错误。对标有题号的每一行做出判断：如无错误，在该行右边横线上划一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：该行多一词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。该行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。该行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。注意：原行没有错的不要改。 Dear Betty, Yesterday my roommate invite me to cel