Câu hỏi: It's cool and quiet everywhere except in the kitchen.

A. windy

B. freezing

C. cold

D. hot

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. educated

B. healed

C. defended

D. brought

Câu 3: It is easy to open a shop but hard to keep it always open.

A. welcome

B. appear

C. switch

D. close

Câu 4: Be quiet or you'll wake the whole house!

A. still

B. noisy

C. peaceful

D. tranquil

Câu 5: At times, this can be risky, and the keepers have been injured and one has been killed.

A. good

B. useful

C. healthy

D. secure

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

A. catch

B. hold

C. take

D. have