The question occurred to me ______ we were to get the machine needed.
| A．that | B．what | C．why | D．where |
I rely ____ her to pay back the money.
| A．to | B．for | C．on | D．at |
Waste paper, waste glass, and waste iron can all be _____.
| A．made | B．taken | C．recorded | D．recycled |
Food supplies may ________ towards the end of the trip, so we can’t waste any food.
| A．run out | B．run up | C．run in | D．run away |
Be ____ to finish your homework before supper.
| A．shy | B．sure | C．nervous | D．serious |
His proposal is very _____. We do not need any explanation.
| A．abstract | B．faithful | C．loyal | D．concrete |