The Smiths ______ sending e-mails ______ letters because it is faster.
| A．prefer; to writing | B．prefer; to write | C．prefers; to writing | D．prefers; to write |
The driver should drive ____________ /' sləuli / when the traffic is heavy.
| A．slow | B．slightest | C．slowly | D．silently |
The relationship ___________/bi'twi:n /Chinese and African people is important.
| A．between | B．begin | C．began | D．belong |
Turn___________/left/ and you’ll see the post office.
| A．letter | B．litter | C．lift | D．left |
Alice is wearing a __________ / waIt / skirt today.
| A．wait | B．what | C．wet | D．white |
Money from the __________ / [buk] / sales will be donated.
| A．bike | B．book | C．back | D．black |