—May I see your ticket, please? I think you ________ in my seat.
—Oh, sorry. My seat is upstairs.
| A．are sitting | B．sit |
| C．sat | D．have sat |
Willpower is a kind of quality, _____ is _____ it takes to do anything well.
| A．that; which | B．which; what | C．that; that | D．which; which |
Tom is keen _____ surfing the Internet in his spare time.
| A．at | B．on | C．to | D．in |
The students were completely _____ in their reading.
| A．absorbing | B．being absorbed | C．to absorb | D．absorbed |
She missed the plane, _____ driving very fast to the airport.
| A．unless | B．despite | C．though | D．without |
My brother is really _____. He often works in his office far into the night.
| A．open-minded | B．hard-working | C．self-confident | D．warm-hearted |