`37.`

`->`Chu Dong Chu couldn't buy any special food because he was very poor

`@`Clause `+` because `+` Clause`(`reason`)`

`38.`

`->` During Tet, Vietnamese people buy all kinds of sweets and make Chung cakes as well

`@`Sth `+` and `+` sth`(`tương ứng`)`

`39.`

`->`Mono is the tallest student in my class

`@`S `+` be `+` the `+` adj`_`est `+` O

`40.`

`->`Nam spoke English worse than Huy `/` Huy spoke English better than Nam

`@`S `+` V `+` adv`_`er `+` than `+` S`2`

`+)`Bad `-` worse `-` worst

`41.`

`->`Jane is the most beautiful girl in my group

`@`S `+` be `+` the most `+` adj `+` O

`42.`

`->`I think we should keep our traditional customs

`@`S `+` should`(`not`)` `+` V

`43.`

`->`It took him an hour to walk to school last night

`@`It `+` take`(`s`/`p`"I")` `+` `(`O`)` `+` time `+` to V