1.Would you like to contribute to our______________? (collect)
2.:You should work harder for the coming terminal examination. ( should) *
A. had better
B. would rather
C. needn’t
D. mustn’t
3. the teacher had divided the students _________small groups before they did their task.
4.The floor was covered in tiny pieces of paper. (tiny) *
A. unimportant
B. many
C. very large
D. extremely small
