2. I　must　write　Mary　tonight.　It’s　3　weeks　since　I　received　her　letters.

1. I　have　to　go　home　because　there　is　no　bus　now.

4. Should　me　meet　at　the　theatre.

3. You’d　better　hurry　up,　if　you　want　to　get　home　before　dark..

2. You　shouldn’t　eat　too　much.

1. You　should　get　a　lot　of　sleep.

4. Can　you　help　me?

回答：All　right./certainly/OK/Yes　please./Do　as　you　like.(肯定)

Sorry,　I’m　busy./I　am　afraid　not./certainly　not/No,　thinks.　/No,　I　won’t.　(否定)

3. Could　you　lend　me　some　money?

2. Would　you　mind　opening　the　window?

1. Will　you　open　the　door?