The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.
(2012·洛阳高二检测) _______ of danger in the street at night, she had to go home with a friend _______ her.
It _______ that Chinese football team beat Japanese team at the last moment in the Universiade in Shenzhen.
Although human evolution has _______ in the past 10,000 years, we are changing our environment faster still.
—Was the proposal passed at yesterday’s meeting?—Yes, but some members of the committee expressed _______.
—Jenny is always _______ for appointments. Why is she late today?—She might have got trapped in a traffic jam in the rush hour.