We don’t have enough nurses to look after thepatients. At least _____ are needed.

_____ from the number of the cars, he knew there were not many people at the club. [ ]

These photos_____ me_____ the old days when I was young.

Schools across China are expected to hire 50,000 college graduates this year as short-term teachers, almostthree times the number hired last year, _____reduce unemployment pressures. [ ]

This time last year I paid a visit______Shandong which is 5000 kilometers _____.