

Hãy luôn nhớ cảm ơn và vote 5*
nếu câu trả lời hữu ích nhé!
`+` Cấu trúc:
`1.` S1 + V1 + Wh + S2 +should/could + Vo
`->` S1 + V1 + Wh + to Vo
`2)` Should + I + Vo...?'' S2 + V1
`->` S2 + V1 + whether +to V
`1.` They wondered/couldn't tell how to use that support service.
`2.` He had no idea who to turn to for help.
`3.` Mai asked her mother when to turn off the oven.
`4.`Phong and Minh couldn't decide where to park their bikes.
`5.` He was not sure whether to call her then.
`6.` They wondered what to do to make Linh feel happier.
@yennhi64
Hãy giúp mọi người biết câu trả lời này thế nào?

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