---Will you be _________ this evening, Mary?
---That depends. I am afraid I will be with my manager together discussing a plan.
| A．convenient | B．suitable | C．available | D．efficient |
They considered ______ a computer, which was considered ________ a great help in their work.
| A．to buy; to be | B．buying; being | C．to buy; being | D．buying; to be |
Several weeks had gone by _______ I knew the painting was missing.
| A．as | B．since | C．until | D．before |
Mr. Alexander doesn’t just write for fun; _______, writing is his bread and butter.
| A．at last | B．in fact | C．in a word | D．as a result |
He sent me an e-mail, ________ to get further information.
| A．hoped | B．to hope | C．hoping | D．hope |
---Mr. Smith must know a lot about Chinese history.
---________. He has studied it for years.
| A．So he does | B．So does he | C．So he must | D．Yes, he must |