We have just heard a warning on the radio _____________ a typhoon may be on its way．
| A．what | B．when | C．which | D．that |
He was unhappy when he sold his violin．After all，he________it for a very long time．
| A．has had | B．had had |
| C．has | D．had |
Out of the train_______, well-dressed and waving to the crowd.
| A．a tall man stepped |
| B．was stepping a tall man |
| C．did a tall man step |
| D．stepped a tall man |
— Do you know how Chinese acupuncture reduces pain?
— Well, well, _______．I’ve never read about that.
| A．I can’t tell you |
| B．you really have me there |
| C．there is some doubt |
| D．what a shame |
In many cities of China, if an ambulance is_______ in a traffic jam, police will respond to the emergency.
| A．held up | B．held back |
| C．held down | D．held out |
— I don’t remember having ever seen John since last week．Has he gone somewhere?
— Not really．He_______ his newly-bought apartment.
| A．has decorated | B．was decorating |
| C．decorated | D．has been decorating |