People are living in ___ world where mouse clicks rule our life, so online searches have become _____ must.
| A．the; / | B．/; a | C．a; a | D．a; the |
----_____ David and Vicky _____ married?
----For about three years.
| A．How long were … being | B．How long have … got |
| C．How long have … been | D．How long did … Get |
John and I _____ friends for eight years. We first got to know each other at a Christmas party. But we ____ each other a couple of times before that.
| A．had been; have seen | B．have been; have seen |
| C．had been; had seen | D．have been; had seen |
Being able to afford ______ drink would be ______ comfort in those tough times.
| A．the the | B．a a | C．a / | D．/ a |
——May I put my luggage on the seat beside you, sir?——____.
| A．Sure, with pleasure | B．Okay, please yourself |
| C．Well, never mind | D．Yes, help yourself |
There was something wrong with the network, or the e-mail____ earlier.
| A．could have been sent | B．might be sent |
| C．need have been sent | D．must be sent |