__________ the help of modern technology， scientists got a photo of a black hole．（ ）
A．AtB．InC．OnD．With
He chose to study in a junior school near his home． It __________ to be a wise decision．（ ）
A．put outB．put onC．turned outD．turned on
As students， we should______ourselves． We can't spend much time playing computer games．（ ）
A．be responsible forB．be proud of
C．be popular withD．be thankful to
A primary school in England has ____ signs at its three entrances（入口）， saying： Greet your child with a smile， not a mobile．（ ）
A．put intoB．put offC．put onD．put up
I didn't see you ____ in． You must have been very quiet．（ ）
A．comesB．to comeC．comeD．have come
Anna is preparing for the coming exam， so she has to ____ the invitation to the party．（ ）
A．turn onB．turn downC．turn offD．turn up
During the Spring Festival， the young a kowtow（磕头） to the elders， but now they only give them best wishes．（ ）
A．used to giveB．were used to give
C．were used to giving
Good news! You've passed the PE test．
Hooray!____， I'm worrying about it．（ ）
A．All in allB．To be honest
C．Without doubtD．In my opinion
Because it might encourage teenagers to try smoking， Sina Weibo______the "smoking" emoji（
）（ ）
A．cut upB．took downC．gave awayD．found out
The government is trying to protect the environment now．
Yeah． It is reported that some factories will be_____soon．（ ）
A．set upB．shut offC．given upD．turned off
The 119 passengers are_____Liu Chuanjian． Without him， they would probably have lost their lives．（ ）
A．hard onB．thankful to
C．friendly toD．responsible for
People now in many big cities have to ___ early to avoid the heavy traffic in the morning．（ ）
A．set outB．put outC．take outD．give out
Some volunteers plan to_____ a survey about the school finishing time．（ ）
A．find outB．sell outC．take outD．carry out
We should stop fireworks to reduce pollution．（ ）
A．getting offB．turning off
C．taking offD．setting off
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