It is a common theme in many fiction stories that the world may one day be by insects.
| A．broken in | B．run over | C．taken over | D．filled in |
I would have helped you, but I ________ really occupied the whole week．
| A．was | B．am | C．had been | D．were |
The education program ________ combining brain work with manual labor is being widely spread throughout the country.
| A．to aim at | B．aims at | C．having aimed at | D．aimed at |
The sooner we students ________ to the new school，the better it will be _______ our studies.
| A．adapt; for | B．adjust; to | C．adopt; for | D．admit; to |
With everything ________, he started the slide show.
| A．in the place of | B．in places | C．in place of | D．in place |
Occasions are quite rare ________ I have time to spend a day with my kids.
| A．who | B．which | C．why | D．when |