These are his trousers. Mine over there.
| A．is | B．am | C．are | D．was |
The man__________blue is Mr. White.
| A．on | B．of | C．in | D．at |
There are some birds___________the tree.
| A．of | B．to | C．on | D．in |
--_____you busy last weekend?
--Yes, I helped my mother clean the house and the garden.
| A．Were | B．Was | C．Did | D．Are |
---Who cleaned the room?
--- Li Lei __________.
| A．was | B．did | C．is | D．had |
--______________?
---She played the piano.
| A．What does Betty do |
| B．What did Betty do |
| C．What is Betty doing |
| D．Where was Betty |