The chairman thought _________ necessary to invite Professor Smith to speak at the meeting.
| A．that | B．it | C．this | D．him |
It is comforting to see that ________， we are doing our part for the environment.
| A．as small may be we | B．as we may be small |
| C．small as may be we | D．small as we may be |
There is no point advocating banning smoking in public ________ the law is introduced.
| A．when | B．unless |
| C．since | D．because |
You know it's love when all you want is that person to be happy, ________ you're not part of their happiness.
| A．even if | B．as if |
| C．if only | D．if ever |
One split second later your life or someone else's life could be gone ________ you are just glancing at your phone to check a text message.
| A．even though | B．in that |
| C．only if | D．as if |
Mr. Smith doesn't go to his usual club, ________ it is being decorated these days.
| A．for | B．yet |
| C．so | D．or |