It took building supplies to construct these energy-saving houses. It took brains, too.
| A．other than | B．more than | C．rather than | D．less than |
. “This is a window, ________ the sun comes in.” said the lady to her baby.
| A．where | B．which | C．by which | D．through which |
. Living in the western part of the country has its problems, ________ obtaining fresh water is not the least.
| A．with which | B．for which | C．of which | D．which |
. These students will graduate from the university next summer, ________ they will have studied here for four years.
| A．by then | B．by that time | C．by the time | D．by which time |
. Many new means of transportation have been developed in our century, ________ perhaps the hovercraft.
| A．and the strangest of which is | B．the strangest of which being |
| C．the strangest of which is | D．and the strangest of them being |
. In , the take-home food sold by supermarkets made up per cent of the total, while _____supplied by fast restaurants was per cent.
| A．that | B．which | C．it | D．one |