Thank you for sending us ____ fresh vegetables of many kinds. You have done us ____ a great service.
| A．不填；a | B．the；a | C．不填；不填 | D．the；不填 |
he has been working so hard . __________ he could answer such a difficult question.
| A．No wander | B．No wonder | C．why | D．because |
Holmes walked swiftly into the garden , ______________ by Doctor Watson.
| A．following | B．followed | C．was followed | D．to be followed |
The _________ on his face was kind of strange, when I told him the news.
| A．appearance | B．looking | C．expression | D．description |
The young mother walked off, leaving the little boy ___________ in the room.
| A．cry | B．crying | C．cried | D．to cry |
I rushed home in a hurry only _________ that nobody was in.
| A．to find | B．finding | C．found | D．having found |