11. It is because people are likely to stay indoors the virus can spread easily people o

发布时间:2020-08-16 07:00:31


11. It is because people are likely to stay indoors      the virus can spread easily      people often catch colds.
A. and, that
B. so, that
C. therefore, so
D. that, that

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A. and, that
B. so, that
C. therefore, so
D. that, that
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