Let’s learn to use the problem we are facing _______ a stepping-stone to future success.
| A．to | B．for | C．as | D．by |
__________ science books missing in our school is large.
| A．A number of | B．The number of | C．A great deal of | D．A lot of |
Sorry, Madam. You’d better come tomorrow because it’s ________________ the visiting hours.
| A．during | B．at | C．beyond | D．before |
When he turned professional at the age of 11, Mike ___________ to become a world champion by his coach and parents.
| A．expected | B．was expecting | C．was expected | D．would be expected |
The company had about 20 notebook computers but only one-third ___________ used regularly. Now we have 60 working all day long.
| A．is | B．are | C．was | D．were |
Research ______________ out at Liverpool University supports this idea and suggests that if we don’t use the sense of direction, we lose it.
| A．not carry | B．carrying | C．being carried | D．having carried |