Chuyển đổi câu: 1. Learning english is necessary for you -> it is.............. 2. "What should we do to make Mum feel happier ?" They wondered. -> it.................. 3. Could you tell me what i should wear at the party ? -> i don't know .................at the party Mọi người giúp mình với cần gấp

Chuyển đổi câu:

1. Learning english is necessary for you

-> it is......necessary for you to learn English........

2. "What should we do to make Mum feel happier ?" They wondered.

-> they.........wondered what to do to make Mum feel happier.........

3. Could you tell me what i should wear at the party ?

-> i don't know .......what to wear ..........at the party