某商品2005年比2004年涨价5%，人工2006年比2005年降价10%，2007年比2006年降价5%，2008年比2007年涨价10

智能之学The old man lived ______ , but he was not ______.A．lonely, aloneB．alone, lonelyC．lonely, l

导论答案I couldn't help ______.A．to laughB．laughingC．have laughed

期末When he listens to a talk, he likes to sit ______.A．in frontB．at frontC．in front of

冲刺The boy was ______ at maths.A．fineB．goodC．nice

刷题—______ did the first man walk on the moon？ —In 1969.A．WhatB．WhereC．When

题库The man's name is Thomas Edison. You can call him ______.A．Mr. ThomasB．Mr. TomC．Mr. Edison

肝试【C2】A．paidB．madeC．watched

卷及【C3】A．walkedB．was walkingC．left

分享【C4】A．moneyB．foodC．the basket

人工It's vital that enough money ______ collected to get the project started.A．isB．beC．must be

智能之学We consider ______ the instrument be adjusted each time it is used.A．that it necessaryB．it

导论答案______ was once regarded as impossible has now become a reality.A．WhatB．ThatC．WhichD．As

期末Mr. Smith, together with his wife and children, ______ going to the party this weekend.A．a

冲刺Would you mind ______ the computer game in your room？A．him playingB．his playingC．him to pl

By next year he ______ in New York for five years.A．has workedB．has been workingC．worksD．w

Henry is often seen ______ English aloud every morning in the classroom.A．readB．readsC．rea

Without heat and sunlight, plants on the earth ______ well.A．would not growB．will not grow

Only recently ______ to deal with the environmental problems.A．something has doneB．has som

The question ______ at the meeting tomorrow is very important.A．to discussB．being discusse