_____ very small, these computers are widely used.
A. To be
B. Having been
C. For being
D. Being
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______, more than 200 houses and buildings are heated by solar energy.
A. In the small alone town
B. In the small town alone
C. Alone in the small town
D. In the alone small town
He was ______ a very difficult time after losing his job.
This letter should be ______ the municipal office.
Sometimes parents would ______ a wall of silence when they communicate with their teenagers.
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