After nine years working to protect Siberian tigers, Yang Jun _____ his efforts recognized at the annual award ceremony in Beijing where he was named a "wildlife protector".
A. had B. had had
C. has had D. has
The emoticons _____ when we want to stop a conversation, sparing us the embarrassment.
A. come around B. come in handy
C. come about D. come by
In the "moon garden" onboard the Chang'e 4, the shoots of cotton marked the first live matter ever _____ on the moon.
A. having grown B. to be grown
C. being grown D. grown
To make extra-class education run on the right track, China is tightening _____ of after-school training institutions.
A. application B. regulation
C. adaptation D. cooperation
Yumin, the late famous physicist, often encouraged his students to _____ what they believed in, even when facing strong opposition.
A. come up with B. take charge of
C. put up with D. stand up for
In the US, there are currently over 5,000 community schools _____, in addition to serving as educational institutions, function as community centers for the surrounding neighborhood.
A. which B. where
C. whose D. as
