| The birds are singing in the trees and the bees ____________ over the flowers. |
A. are flying B. are fling C. is flying |
| The little boy ___________ his hands before he ___________ anything yesterday. |
A. washes, eats B. washs, eats C. washed, ate |
| —____________ do you help your mother do the housework? —Once a week. |
A. How often B. How long C. How much |
| —Shall we invite Bill to play football now? —Oh, no. He ____________ his clothes. |
A. washes B. is washing C. washed |