用所給動詞的適當時態填空。1.ShewaswatchingTVwhilehermother

問題詳情：

用所給動詞的適當時態填空。

1. She was watching TV while her mother ________(wash)her clothes.

2. The spaceman didn’t know there _______ (be) seven days in a week.

3. We don’t know what __________(happen) since yesterday.

4. Many old people ______ (enjoy)flying kites when they were young.

5. You________(know) the result of the exam in an hour.

【回答】

1. was washing 2. are 3. has happened 4. enjoyed 5. will know

知識點：語法填空

題型：完成句子