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There are varieties of programs in the TV station to ________ many different types of interests and tastes among the public.

We are sparing no efforts to create _____ more peaceful and more advanced world, ____ place where everyone enjoys his life and freedom.

Experts insist that packets of cigarettes come with a health warning ______ to them.

The manager asked me to______ the report, because he didn't want to speak for a long time at the meeting.

With the word "PM2.5"______ heard and seen in our life, people become more and more concerned about air pollution.

Mr. Zhang once taught in a remote village in Anhui province as a volunteer, which was ______ only on foot.

Nelson Mandela, who was elected ______ president of South Africa in 1994, is generally regarded as______ father of the country.

According to scientists, our mental abilities begin to _______ from the age of 27 after reaching the highest level at 22．

—Peter, this is Laura, a student from No. 2 Middle School.
—How do you do? I’m very delighted to make your _______.

David is             animal fur, so he won’t visit anyone who has cats or dogs in the house.