Chất nào sau đây không phản ứng được với dung dịch axit axetic?

A. Cu.

B. Zn

C. NaOH

D. CaCO₃

a) He must finish his homework.

b) He must clean his room.

c) He must buy bread.

d) He must feed the cat.

e) He must turn off the light.

f. He must give the key to Aunt Thanh.

a. the hottest

b. the most difficult

c. the greatest

d. the highest

e. the most exciting

f. the strongest

g. the most beautiful

h. the most intelligent

i. the largest

j. the most successful