The students ________ hard for the entrance exam when the inspector came into the room.

The phrase showed up in second paragraph is closest in meaning to__________.

She sent me a(n) ________ message to ask about the homework.

My plans to create a tiny car made of glasses were unsuccessful, so I guess it’s back to______ board for me.

Whenever Richard has much free time, he enjoys ________ the websites to know more latest news.

What does the word ensuring in the last paragraph refer to?

In my opinion, English is one of ________ subjects at high school.

Former Chairwoman of the National Assembly Nguyen Thi Kim Ngan, ________ the position of Chairwoman of the National Assembly of Vietnam, attended the wedding of football player Quang Hai on April 7^th recently.

Occasionally, my brother wants to ________ but can’t because he knows my parents always believe in him.

Which of the following is NOT mentioned about the Martin jetpack?