_________ important railroad tunnel in the US was cut through the Hoosac Mountains in Massachusetts.

When I went to get the tickets, I realized I _________ any money.

Russia is bigger than any other country in the world. (big)

=> ___________________________________________.

Viết lại câu sử dụng đại từ quan hệ:

The student is from China. He sits next to me in the English class.

=> __________________________________________________.

When the Minister was asked about the strike, he declined to comment.

=> On _________________________________________________________.

Tommy is on the way to his friend's birthday, carrying a gift box ________ in colorful paper.

Our class is going to _______ a picnic at the zoo on Saturday. Would you like to come with us?

__________for twelve hours, I felt marvelous.