His father disappeared, ________ two children and never _______ from again.
| A．left; being heard | B．leaving; heard | C．left; be heard | D．leaving; to be heard |
Your room is in __________ mess! Go and put them in __________ order.
| A．/; an | B．a; / |
| C．a; an | D．/ ；/ |
Only then __________ realize I had said the words __________ the feeling of disappointment.
| A．did I; added to | B．I; adding to |
| C．I did; added | D．did I; adding to |
At times, worrying is a normal __________ to a difficult event or situation—a loved one being __________ in an accident, for example.
| A．response; injured | B．reaction; wounded |
| C．reply; hurt | D．reflection; died |
We have come to the __________ that it would be unwise to accept his idea.
| A．suggestion | B．conclusion |
| C．plan | D．promise |
Mary is a (n) __________ customer, so the waiter knows her likes and dislikes.
| A．usual | B．ordinary |
| C．common | D．regular |