Câu hỏi: She had a cozy little apartment in Boston.

A. uncomfortable

B. dirty

C. lazy

D. warm

Câu 1: We know not what is good until we have lost it.

A. find

B. count

C. guess

D. learn

Câu 2: Fish only species that are not of concern, threatened or endangered.

A. bettered

B. born

C. safeguarded

D. taught

Câu 3: Advanced students need to be aware of the important of collocation.

A. of high level

B. of great important

C. of low level

D. of steady progress

Câu 4: Fish only species that are not of concern, threatened or endangered.

A. educated

B. healed

C. defended

D. brought

Câu 5: Some couples see single women as a threat to their relationships.

A. married

B. lonely

C. divorced

D. alone

Câu 6: Keep only fish that you will eat; release the rest.

A. catch

B. hold

C. take

D. have