—Sandy，is Mr Li in the teachers' office now？
—I am not sure.He ______ be there.
A．mustB．can'tC．mustn'tD．may
—It's really kind of you to help me with Maths，Jack.
— ______.
A．It doesn't matterB．All right
C．You're welcomeD．Never mind
The landing of China's rover （登陆车） Zhurong on Mars shows China has made great in space exploration.（ ）
A．progressB．projectC．productD．protection
一I often see the sign in schools.What does it mean？
一Students bring mobile phones to school.（ ）
A．needn'tB．can'tC．couldn'tD．wouldn't
It's reported that， ，people with college education can make more money than those without.（ ）
A．in generalB．in publicC．in timeD．in all
一Why do you choose to use Beidou Navigation （导航） Satellite System，Mr.Li？
一Because I think it has many advantages GPS （全球卫星定位系统）.（ ）
A．onB．inC．overD．of
The old man，Bai Fangli，donated about￥350，000 to over 300 students he lived a simple life himself.（ ）
A．untilB．unlessC．becauseD．though
The documentary For the Sake of Peace（《为了和平》）bring the War to Resist US Aggression and Aid Korea （抗美援朝战争） on screen.（ ）
A．livingB．livelyC．aliveD．live
We should pay much attention to saving natural resources.Otherwise，they will one day.（ ）
A．put outB．run outC．get outD．sell out
I think Taizhou is a wonderful place to live.
.And it was chosen as one of China's top 100 happiest cities in 2020.（ ）
A．That's all rightB．Believe it or not
C．That's a good ideaD．I can't agree more
The chart shows that to be more popular，the largest number of students in schools would like to .（ ）
A．take more exercise to be stronger
B．make more friends in a new school
C．ask more money from their parents
D．study harder to improve their abilities
are you doing here，baby？You must go to bed.It's late.
A．WhatB．WhoC．WhenD．Where
As parents，we must ask ：Are we listening？Are we patient enough？
A．usB．ourselvesC．meD．myself
The sun shone the window and left a tiny rainbow on the wall.
A．beyondB．alongC．throughD．across
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