He got up late and hurried to his office, ___ the breakfast untouched.
| A．left |
| B．to leave |
| C．leaving |
| D．having left |
Bill’s fully ____ from his heart disease. He is very happy.
| A．suffered | B．returned | C．resulted | D．recovered |
While____the dog,you should take care not to____.Otherwise,it may be dangerous to strangers.
| A．walking; get loose | B．walk; be loose |
| C．walking for; get it loose | D．training; get it run |
Tom ____ skating, so he spends all his spare time on it.
| A．is popular with | B．is concerned about |
| C．is proud of | D．is crazy about |
Having retired(退休), he ______ the club for old men and plays chess every day there.
| A．takes part in | B．joins in | C．attends | D．joins |
Neither of them knows the difference ________ the two and neither can we tell one ________the other.
| A．between; between | B．among; from | C．among; between | D．between; from |