My friend has returned from the UK. She ______ at Oxford for four years, during which we communicated with each other on the Internet.
| A．studied | B．has studied | C．had studied | D．has been studying |
As fuel prices rose, bus companies raised their fares and _____.
| A．so did the airlines |
| B．nor did the airlines |
| C．so the airlines did |
| D．nor the airlines did |
Friendships between girls are usually ________ shared feelings and support, but friendships between boys are based on shared activities or interests.
| A．cautious about | B．absorbed in |
| C．anchored in | D．concerned about |
---Isn’t it time you went to bed, Mike?
---I _____ painting all afternoon, so I have to finish my homework now.
| A．have been practicing | B．have practiced |
| C．was practicing | D．had practiced |
______ is no debating that the Dallas Mavericks will defeat the Washington Wizards in the next game.
| A．It | B．As |
| C．That | D．There |
---I have looked for my keys everywhere, but I can’t find them.
---Sorry to hear that. You _____ them somewhere.
| A．must lose | B．should lose |
| C．must have lost | D．should have lost |