If I had been a little more careful, I _______the wallet behind.
| A．won't leave | B．hadn't left | C．didn't leave | D．wouldn't have left |
in a white uniform, he looks more like a cook than a doctor.
| A．Dressed | B．to dress | C．Dressing | D．Having dressed |
His sister left home in 1998,and_______ since .
| A．had not been heard of | B．has not been heard of |
| C．had not heard of | D．has not heard of |
After two hours of walking, they came to the camp site, ______ .
| A．hungry and tiredly | B．hungrily and tiredly |
| C．hungrily and tired | D．hungry and tired |
—______ that he managed to get the book?
— Oh, his sister helped him.
| A．Where was it | B．What was it | C．How was it | D．Why was it |
Tom has been out of work for two years, so he has difficulty______.
| A．earning living | B．earning his living | C．to earn livings | D．to earn his living |