_____ in the queue for half an hour,Tom suddenly realized that he had left his wallet at home.
| A．To wait | B．Have waited | C．Having waited | D．To have waited |
Mrs Smith was very ill.The doctor said she was ___ of death.
| A．at the edge | B．at edge | C．on edge | D．on the edge |
I didn't do very well in the exam, and so I’m afraid of ____.
| A．scolding | B．to be scolded | C．being scolded | D．scolded |
____ my opinion, American eat too much meat.
| A．For | B．To | C．In | D．Upon |
____ my opinion, American eat too much meat.
| A．For | B．To | C．In | D．Upon |
Steve and Jane are both very good ____ chemistry.
| A．at | B．for | C．in | D．on |