–Are you scared of the flight?
--No, just a little ________.
| A．angry | B．serious | C．anxious | D．calm |
Many people believe we will face environmental disasters _________ we completely change the way we live.
| A．but | B．though | C．unless | D．until |
—Have you decided when to leave for Australia?
—Not yet. We _________ set off at the end of this month.
| A．must | B．should | C．need | D．may |
We are _________ by doctors to eat more natural food and take plenty of physical exercise.
| A．allowed | B．warned | C．taught | D．advised |
—Hi, Amy. Why are you so sad?
—Well, I found the computer I had had _________ went wrong again.
| A．it repair | B．repaired | C．it repaired | D．repairing |
—Where have you _________ all day?
—I came back at noon and I _________ in this room ever since.
| A．gone; had been | B．gone; was | C．been; have been | D．been; am |