冠词
1. He takes___ active part in____ sports.A. the; the    B. the;/   C. an;/     D./;the2. The teacher came into the classroom, ______dictionary under_____ arm.A. a; a      B. an; a   C. the; the   D./;/3. A doctor told me to take ____medicine three times a day, stay in ___bed, then I would be better soon.A. a; the     B. a; /    C. the; /    D. /; a
4. The southerners usually have _____rice for_____ lunch.A. the；the    B. /; a    C. /; /     D. the;／5. ______Einsteins did manage to send ______ ...