一、单项填空(共20小题，每小题0.5分, 计10分)

1. Mr. Huang will ________ in the movement.

A. play a leading part B. take parts C. play leading part D. take a part

2. _____ of the students who took part in the military training is 450.

A. A number B. A lot C. Lots D. The number

3. They lived a hard life and were often made _______ for over ten hours a day.

A. work B. to work C. to working D. worked

4. Please tell me the way you thought of _______ the garden.

A. take care of B. to take care of C. taking care of D. to take care

5. The leader of the factory told us that very little _______ was made of the waste material in the past.

A. cost B. value C. use D. matter

6. The reason ________ being late for the meeting was ______his little son fell ill this morning.

A. for, that B. why, that C. for, because D.