=>

1. Both you and your brother are active.

-> both...and (cả hai)

2. Your room looks dark and untidy.

-> and: và

-> look + adj

3. The Japanese work hard and exercise regularly.

-> and: và 

-> work hard: làm việc chăm chỉ

4. My mother eats a lot of fruit and vegetables.

-> and: và (she -> my mother)

1. Both you and your brother are active.

2. Your room looks dark and untidy.

3. The Japanese work hard and exercise regularly.

4. My mother eats a lot of fruit and vegetables.

$-$ Cấu trúc có trong bài: chỉ sự tương đồng của ai đó về cái gì + "and" (và):

$+$ Both + S1 + and + S2 + are + adj/ adv.

$+$ S + V(theo thì) + noun(s)/ adj/ adv + and + noun(s)/ adj/ adv.

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$@haanx2$