Scientists did a ____． They asked students aged 13 to 18 how long it ____ them to have fun on phones and computers． They also asked about ____ feelings of happiness． They found that those who spend more time on their smart phones are unhappier． "Spend no more than two hours a day on digital media（電子產(chǎn)品），___ try to spend more time with friends and on exercise． These two activities bring greater happiness．" Jean Twenge， the scientist who led the study ，said．

【1】A. happyB. happierC. happiest

【2】A. surveyB. discoveryC. test

【3】A. takesB. spendsC. costs

【4】A. yourB. ourC. their

【5】A. butB. andC. or

【1】人工智能機(jī)器人將來(lái)能像人類一樣思考嗎？

Can AI robots think___humans in the___？

【2】知道你的長(zhǎng)處，并成功地利用，一人可抵萬(wàn)人．

Know your strengths， use them___ and one man can be worth ten___．

【3】讓別人等太久是不禮貌的．

It is___ to keep others___ for a long time．

【4】為了保持健康，我們應(yīng)該堅(jiān)持健康的飲食習(xí)慣．

We should___ to healthy___ habits to keep fit．

【5】法國(guó)承諾努力重建巴黎圣母院．

France has___to make an___ to rebuild Notre﹣Dame Cathedral in Paris．

【1】She offered______（help）me with my English．

【2】It will be expensive ______（repair）it．

【3】If he ______（stop）smoking，his voice ______（be）better．

【4】My father told me ______（not go）out alone at night．

【5】If the train ______（be）on time，it ______（be）here in ten minutes．

【6】There is a boy ______（copy）other 's homework in the classroom．

【7】To tell you the ______（true），I am ______（true）sorry for my mistakes．

【8】Don't use my computer for ______（play）games．

—My God.___don't stay up too late, or you' ll be tired out.

A. You can't put your eggs in one basket

B. The grass is always greener on the other side

C. You can't burn the candle at both ends

D. Do as Romans do when in Rome

—They are the students from No. 1 Primary School.

A. that areB. where areC. which isD. who is

﹣Sorry．I___my mobile phone at home． I___basketball in the park with my friends．

A. forgot；playedB. forgot；was playing

C. left；playedD. left；was playing

﹣I know． so he___still___in both China and Canada now．

A. has；rememberedB. is；remembered

C. well；rememberD. is；remembering

﹣Sure， it's very interesting， but you can only ____it for two weeks．

A. borrow； lendB. lend；borrow

C. borrow；keepD. lend；keep

﹣In Beijing， the capital of China，the first city to host both Summer and Winter Olympics．

A. be taken placeB. take place

C. take partD. be taken part