The little boy is dirty from head to foot because he ______ in the mud all morning.
| A．has played | B．has been playing |
| C．is playing | D．was playing |
I when there came a knock at the door.
| A．about to go to bed | B．am going to bed |
| C．was just about to go to bed | D．have gone to bed |
You can find the map of China like a cock.
| A．looked | B．shaped | C．appears | D．seems |
The book is superior ________ that one I just finished reading.
| A．in | B．at | C．to | D．than |
After the flood, the villagers began to ______ and tried their best to rebuild their homeland.
| A．look up | B．look back | C．look around | D．look ahead |
___________ in charge of the shopping centre has upset him for quite some time.
| A．Left | B．Being left | C．Having left | D．To leave |