Câu hỏi: Nobody knows the origin of the Vietnamese long dress. There was no evidence about where and when it appeared.

A. evaluation

B. book

C. proof

D. symptom

Câu 1: Participants from 100 countries go to the Olympic Games.

A. People who represent.

B. People who come

C. People who take part in

D. People who are athletes

Câu 2: The education system is a mirror that reflects the culture.

A. points

B. explains

C. shows

D. gets

Câu 3: Now I understand why you moved out of that house.

A. I am surprised

B. it frustrates me

C. I am intrigued

D. it makes sense to me

Câu 4: Fallout from a nuclear power station damaged in the tsunami may endanger the vegetation.

A. stimulate

B. harm

C. inhibit

D. benefit

Câu 5: He insisted on listening to the entire story.

A. part

B. funny

C. whole

D. interesting

Câu 6: Whenver problems come up, we discuss them frankly and find solutions quickly.

A. clean

B. encounter

C. arrive

D. happen