Wood catches fire easily, so we must remember _________ fire.
A. to keep it away from
B. to keep it away
C. not to keep it away from
D. not to keep it away from
---Why does the boy have few friends?---Because he is_______.
A. rude B. kind C. polite D. careful
The little boy wasn't listening _______ in class, so he often missed some important parts.
A. careful enough B. enough careful
C. carefully enough D. enough carefully
It is said that we will have _____ one-day holiday tomorrow, it’s ______ good news for most of the students.
A. an; a B. an; a
C. a; / D. a; the
They had a wonderful time _______________ .
A. chat on the Internet B. chatting on the Internet
C. chat in the Internet D. chatting in the Internet
—How often do you clean the fish tank? — .
A. This morning B. Only once
C. Twice a week D. Two days.