17.
A. The debating team failed in the final.
B. The debating team couldn't reach the final.
C. The debating team has ultimately won the final.
D. The debating team is working very hard for the final.
18.
A. He will buy a new coat for the woman.
B. He will buy a stove to cook.
C. He will go back home.
D. He will cook a soup.