题目内容
While Mary ___ a letter, the children were playing outside.
- A.wrote
- B.writes
- C.is writing
- D.was writing
D
本题主要考查While引导的时间状语从句，一般情况下while引导的从句中前后两个动作都用进行时态，故选D.
本题主要考查While引导的时间状语从句，一般情况下while引导的从句中前后两个动作都用进行时态，故选D.
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While Mary ___ a letter, the children were playing outside.
| A．wrote | B．writes | C．is writing | D．was writing |
While Mary ___ a letter, the children were playing outside.
|
A．wrote |
B．writes |
C．is writing |
D．was writing |