4. The teacher's        (abruptly) ending speaking can make some students focus their attention on their listening.

3. As a modern young man,we should never get ourselves at the       (merci?ful) of any difficulties.

2. While he was writing his essay,he        (seize) with an illness suddenly.

用所給詞的適當形式填空

1. Everyone should be        (caution) about what he/she says because careless remarks are likely to hurt others' feelings.

5. 你方便的話，請在六點鐘來。

Please come at six if        you. (convenient)

4. 我們不會參加那個奢華的聚會。布朗一家也不會參加的。

We won't attend that expensive party.        .(nor+助動詞/系動詞/情態(tài)動詞+主語)

3. 你只有經常向他人學習，才能不斷地完善自我。

      can you get improved continuously. (only +狀語從句)

2. 照顧好你自己。當必要的時候，最好去看醫(yī)生。

Take good care of yourself. You'd better see a doctor        .(when + adj.)

根據中文意思及括號內的提示完成句子

1. 他們好像沒有通過這次駕照考試，因為他們看起來不高興。

They        this driving test,because they looked unhappy,        (seem to have done)

10. The twins are so alike that no one can    one     (分辨，區(qū)分) the other。