There is no greater pleasure than running on the playground, ____ after a ball.
| A．chased | B．chasing |
| C．to chase | D．having chased |
—Jackie, could you please repeat what I said just now?
— Sorry, I ____.
| A．wasn’t listening | B．wasn’t to listen |
| C．hadn’t listened | D．wouldn’t listen |
I____ my homework at nine o'clock last Sunday morning.
| A．am doing | B．was doing |
| C．do | D．did |
Look at the pride on Tom's face. He ____ to have been praised by the manager just now.
| A．seemed | B．seems |
| C．had seemed | D．is seeming |
Professor John will give us a lecture on how to learn English, but when and where ____ yet.
| A．hasn’t been decided |
| B．haven’t been decided |
| C．isn’t decided |
| D．aren’t decided |
He asked me how much ____ on the mountain bike.
| A．did I pay | B．I paid |
| C．had I paid | D．I had paid |