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【单选题】

(A) Since people are able to travel very easily, they can spread diseases quickly. (B) _________ to travel very easily, people can spread diseases quickly.

A.
Since we are able
B.
Are able
C.
Being able
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】Which information goes in (C)?

A.
Bats are a source of SARS.
B.
Rain forests are the "lungs" of the planet, helping to keep our air healthy.
C.
prevent the spread of diseases, protect possible sources of medicine, and conserve the planet's oxygen
D.
Concluding ideas