1. `=>`We always come to class on time.
2. `=>`How many hours a week does he often work?
3.`=>`American students do not usually wear school uniforms.
4. `=>`Nam has a Science class at 10:00 on Wednesday.
5. `=>`I like Math because it is interesting.
6. `=>` What subject does Tom like best?
7. `=>`We want to work with you.
8. `=>`How do you know he likes meat?
9. `=>`Excuse me! Is there an office near here?
10.`=>` Is that the letter you want to post, Mai?
11. `=>`Mai is interested in doing experiments.
12. `=>`Please tell him I'll call again after five.
13. `=>`Huong will be twelve on Saturday, November 20th.
@1412
