We can never forget the days _______the two astronauts in spaceship worked together and the days _______we spent together.
| A．which; when | B．when; which | C．what; that | D．on which; when |
Would you please tell me the quickest way English well?
| A．to learn | B．A or D | C．how to learn | D．of learning |
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 |