I’ll let you know ____ he comes back.
| A．before | B．because |
| C．as soon as | D．although |
He pretended _______ me when we met in the street.
| A．not to know | B．not to be knowing |
| C．not having known | D．not knowing |
Their parents’ advice is ___________. Which one is NOT right?
| A．worthy of being considered | B．worthwhile to be considered |
| C．worth considering | D．worthy to be considered |
They raised a lot of money and ________ a school for the children in the mountain area.
| A．took up | B．built up | C．made up | D．set up |
Sam said the work would be done by December, _____ personally I doubt very much.
| A．it | B．that | C．when | D．which |
John thinks it won’t be long _________ he finishes the tough work.
| A．when | B．after | C．since | D．before |