_____ a noise just then?
| A．Have you heard | B．Were you hearing |
| C．Are you hearing | D．Did you hear |
---It’s a nice day. ---So __________.
| A．is it | B．it is |
| C．does it | D．it does |
Seeing the owner of the house coming, away __________.
| A．the naughty boys run |
| B．did the naughty boys run |
| C．the naughty boys ran |
| D．ran the naughty boys |
Look! __________.
| A．Here he comes | B．Here comes he |
| C．He came here | D．Here does he come |
Don’t get off the bus until it __________.
| A．has stopped | B．stopped |
| C．will stop | D．shall stop |
That suit __________ over 60 dollars.
| A．has costed | B．costed |
| C．is costed | D．cost |