Câu hỏi: Solar energy is not only plentiful but also infinite.

A. without limit

B. boundless

C. limited

D. indefinite

Câu 1: 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 2: He is over the moon about his examination result.

A. stressed

B. very sad

C. very happy

D. satisfied

Câu 3: With her sophiscated tastes, the singer has become an omnipresent icon of style and beauty.

A. oblivious

B. controversial

C. ubiquitous

D. unknown

Câu 4: There has been no discernible improvement in the noise levels since lorries were banned.

A. insignificant

B. clear

C. obvious

D. thin

Câu 5: It was apparent from her face that she was really upset.

A. obvious

B. indistinct

C. transparent

D. evident

Câu 6: Strongly advocating health foods, Jane doesn’t eat any chocolate.

A. supporting

B. impugning

C. advising

D. denying