2. 外语
  3. Millions of office workers______most of their time sitting in front of computer screens.

Millions of office workers______most of their time sitting in front of computer screens.

admin2019-07-01  106
问题 Millions of office workers______most of their time sitting in front of computer screens.
选项 A、spending
B、to spend
C、spend
D、are spent
答案C
解析 Spend is a correctly formed simple present verb.
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