The ____________ that there is life on other planets has always encouraged scientists to explore the outer space.
A.invitation B.possibility C.order D.advice
—I didn't see you at Jim's party last week. —I had to work that evening, so I _________ go.
A.needn't B.mustn't C.couldn't D.shouldn't
The path was covered with snow, so we walked very _______. We were afraid of falling.
A.quickly B.carefully C.excitedly D.hurriedly
China's high-speed railways _____ from 9,000 to 29,000 kilometres in the past few years.
A.are growing B.were growing C.will grow D.have grown
—___________ can you write in English?
—About forty words per minute.
A.How far B.How often C.How fast D.How long
— How was your job interview yesterday?
— Oh, I couldn’t feel ______.I could hardly answer most of the questions they asked.
A. worse B. easier C. better D. happier
