1. 爸爸太疲勞了，他一躺下就睡著了。

Father was too t       and               as soon as he lied down.

2. 為了節(jié)省時間，那位教授只問了我?guī)讉�問題。

                      , the professor only asked me several questions.

3. 這些年來中國農(nóng)村發(fā)生了巨大變化。 

Great changes               place these years in rural areas of china.

4. 請你說的慢一點好嗎？我記不下來。