Câu 33: It's mandatory for us to wear a helmet while riding a motorbike.
Rewrite: We must wear a helmet while riding a motorbike.

Câu 34: This is her new car.
Rewrite: This new car is hers.

Câu 35: The film's overall performance is poor. Critics found the plot rather good.
Rewrite: The film's overall performance is poor. However, critics found the plot rather good.

Câu 36: Please spare some money for the homeless!
Rewrite: Can you spare some money for the homeless, please?

Câu 37: Find a gas station or we will run out of fuel soon.
Rewrite: If we don't find a gas station, we will run out of fuel soon.

Câu 38: No other noodle soup in our town is as popular as pho bo.
Rewrite: Pho bo is the most popular noodle soup in our town.

Câu 39: Your father has a very big collection of paintings.
Rewrite: What a big collection of paintings your father has!

Câu 40: It's a good idea to wear a hat when walking in the sun.
Rewrite: You'd better wear a hat when walking in the sun.