I assume that you are acquainted ________ this subject since you are responsible ________ writing the accompanying materials.

It was _________hot day that we decided to leave work early.

The waste from the chemical factory is extremely .......

Would you like _____ to my party?

Mai: “How long are you going to study this subject?”

Lan: “ ________ ”.

It was an_________ day.

If I ________ that Brian had to get up early, I would have woken him up.

My teacher_____________ late for school.

It's not worth _____ a tax home.

Would you like..................... somewhere for a rest?

Mike often has_________ at 11:00.

While I _____ TV, my sister _____ to music.

It's difficult ................ your direction.

It is the first of Viet Nam’s nine national parks _________ established

Fashion ___________want to change the traditional ao dai.

................. are you talking to?

People are destroying the air by adding ...... to it.

The librarian asked us _______ so much noise.

Imagine someday you would live without ______

If there is a mechanical problem, we suggest ______ the manufacturer directly.

No one could ever accuse this government ...... about the poor.