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: The shop assistant was totally bewildered by the customer’s behavior.

A. disgusted

B. puzzled

C. angry

D. upset

Câu 2: We decided to pay for the car on the installment plan.

A. cash and carry

B. monthly payment

C. credit card

D. piece by piece

Câu 3: It’s a really difficult matter to decide how to solve now. I will need time to think it twice.

A. to think it over

B. to make it better

C. to make up for it

D. to think out of time

Câu 4: You never really know where you are with her as she just blows hot and cold.

A. keeps going

B. keeps taking things

C. keeps changing her mood

D. keeps testing

Câu 5: The education system is a mirror that reflects the culture.

A. points

B. explains

C. shows

D. gets

Câu 6: Most ethnic groups in Vetnam have their own costumes that reflect their unique culture identities.

A. invaluable

B. different

C. distinctive

D. important