Câu hỏi: Synthetic products are made from chemicals or artificial substances.

A. natural

B. made by machine

C. man-made 

D. unusual

Câu 1: Nutritionists believe that vitamins circumvent diseases.

A. defeat

B. nourish

C. help

D. treat

Câu 2: He was so insubordinate that he losst his job within a week.

A. fresh

B. disobedient

C. understanding

D. obedient

Câu 3: We are very grateful to Professor Humble for his generosity in donating this wonderful painting to the museum.

A. meanness

B. sympathy

C. gratitude

D. churlishness

Câu 4: He had never experienced such discourtesy towards the president as it occurred at the annual meeting in May.

A. politeness

B. rudeness

C. measurement

D. encouragement

Câu 5: At the managers' meeting, the group decided against the new project as a viable option and decided on another direction to ensure success for the company's fall line.

A. impractical

B. feasible

C. practical

D. positive

Câu 6: Unless the two signatures are identical, the bank won’t honor the check.

A. similar

B. as like as chalk and cheese

C. fake

D. genuine