Tom said: " I never go to Thailand by airplane because the ticket is too expensive." 3, The doctor said: " You get toothache because you ate candies a lot."

Answer

Câu tường thuật - dạng kể :

S + said ( to O ) / told O + that + S + V (lùi thì)

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2. Tom said he never went to Thailand by airplane because the ticket was too expensive.

Lùi thì : HTĐ -> QKĐ ( S + was/were + N/adj | S + V2/ed ) 

3. The doctor said he got toothache because he had eaten candies a lot.

Lùi thì :

HTĐ -> QKĐ ( S + was/were + N/adj | S + V2/ed ) 

QKĐ -> QKHT

`1` Tom said that he never went to Thailand by airplane because the ticket was too expensive .

`-` Gián tiếp tường thuật : S + said that + S + V(lùi thì) + O ...

`-` go `->` went .

`-` is `->` was .

`3` The doctor said that I got toothache because I had eaten candies a lot .

`-` Gián tiếp tường thuật : S + said that + S + V(lùi thì) + O ...

`-` you `->` I .

`-` get `->` got .

`-` ate `->` had eaten .