——How do you like our new teacher?
——Very _______. He often says something funny to make us laugh.
| A．helpful | B．humorous |
| C．popular | D．outgoing |
What did the headmaster say about Jim’s ____?
| A． two-months holiday |
| B． two month’s holidays |
| C． two-month holiday |
| D． two month’s holidayC |
—I failed in the exam.
—I am sorry to hear that. Failure is the mother of ________. Try your best, you will ________.
A. success, succeed
B. succeed, success
C. success, successful
—Is your uncle an ________？
—Yes, he recently invented ________ useful machine.
A. invent, the
B. inventor, an
C. inventor, a
—There is too much ________ on the floor. Why did you make it much too ________？
—Sorry, Miss Gao. I will clean it at once.
A. dirty, dirt
B. dirt, dirty
C. dirt, dirt
The earth gets ________ every day, so we should stop ________.
A. polluted, pollution
B. pollution, polluted
C. pollute, pollution