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.

用所给词的适当形式填空

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

5. 你方便的话，请在六点钟来。

Please come at six if        you. (convenient)

4. 我们不会参加那个奢华的聚会。布朗一家也不会参加的。

We won't attend that expensive party.        .(nor+助动词/系动词/情态动词+主语)

3. 你只有经常向他人学习，才能不断地完善自我。

      can you get improved continuously. (only +状语从句)

2. 照顾好你自己。当必要的时候，最好去看医生。

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

根据中文意思及括号内的提示完成句子

1. 他们好像没有通过这次驾照考试，因为他们看起来不高兴。

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，区分) the other。