____ be careful when crossing the street!
| A．Must | B．Should | C．Ought to | D．Do |
Her shoesher dress; they look very well together.
| A． | suit | B． | fit | C． | compare | D． | match |
The last time we had great fun was _____ we were visiting the Water Park.
| A．where | B．how | C．when | D．why |
Most air pollution is caused by the burning oflike coal, gas and oil.
| A． | fuels | B． | articles | C． | goods | D． | products |
Many Chinese universities provided scholarships for students ______ financial aid.
| A．in favour of | B．in honour of | C．in face of | D．in need of |
——How much do I owe you for lunch?
——______. It’s nothing.
| A．You’re welcome | B．Forget it | C．With pleasure | D．That’s right |