Tom realized that he ________ his physics book at home when he reached school.
A. left B. had left
C. was leaving D. leaves
In Sweden, people don’t need to _______ too much money on presents, instead, making a meal is enough.
A. spend B. take
C. pay D. cost
-- Can we make this plan a week later?
-- No, we can’t put off _______ it because the meeting is only two days from now.
A. to make B. making
C. make D. made
--When _____ the abacus _____? -- In the sixth century by the Chinese people.
A. is, invented B. did, invent
C. was, invented D. does, invent
We have been friends for nearly twenty years. Nothing can break off our _______.
A. friendship B. pleasure
C. decision D. experience
In our city, ________ college students want to work as a teacher in holidays.
A. thousand
B. thousands of
C. thousand of
D. two thousand of
