The students busily when Miss Brown went to get the book she in the office.
| A．were writing; left | B．wrote; had left |
| C．had written; left | D．were writing; had left |
The crazy fans ________ patiently in the rain for almost three hours, and they would wait until the famous star arrived.
| A．were waiting | B．have waited | C．had been waiting | D．would wait |
He expressed his hope _______ he would visit China again the next year, and this was the very hope ______ he expressed as soon as he arrived in the country.
| A．that; that | B．which; which | C．that; which | D．which; that |
The criminal was told he would be__________ punishment if he assisted the police.
| A．free against | B．immune from | C．aware of | D．at stake |
People can find so many good things, such as useful information and lovely pictures on the web, __________ it is also a global village filled with bad things.
| A．what | B．when | C．where | D．while |
--- When will you be through with your work, Jones?
--- ____________ ? My boss usually finds something for me to do at the last minute.
| A．Who knows | B．Would you help me |
| C．I beg your pardon | D．Anything the matter |