These old desk( repair) ........carefully three days ago.

This machine is the biggest one she( ever, use) ......

The children still( watch) ...... TV. The( not/ go)....... to bet yet.

This is the first time we ( be) .......to Sa Pa.

How long......you (attend) ......in this school?

The Eiffel Tower( design)...... for the Paris World's Fair of 1889.

Your writing should( write)...... in English.

......you( post)........ the letter for me yet?

She dosen't know what( say) ........with hẻ parents before being away.

These old desks was repaired carefully three days ago. (Có ago là dấu hiệu nhận biết của thì qkđ)

This machine is the biggest one she has ever used. (Có ever là dấu hiệu nhận biết của thì htht)

The children is still watching TV. They haven't gone to bet yet. (Vế trước có still là dấu hiệu của thì httd, vế sau có yet là dấu hiệu của thì htht)

This is the first time we have been to Sa Pa. (Nói về trải nghiệm, dùng htht)

How long have you attended in this school? (Dùng htht)

The Eiffel Tower was designed for the Paris World's Fair of 1889. (Dùng qkd vì có tgian rõ trong qk)

Your writing should be written in English. (Dùng bị động nhé)

Have you posted the letter for me yet?

She doesn't know what to say with her parents before being away. (Dịch ra là không có gì để nói)