33.A cool rain was falling_________with snow causing heavy traffic. A.mixed B mixing C.to mix D.having mixed
26.Nowadays people have to pass various tests for professional __________ so that they can be qualified for a well-paid job.
25.There is an obvious __________ between the cultures of the West and East.
24.We have strong __________ for believing that the mine accident in Heilongjiang was due to the poor management.
22.I’m terribly sorry to turn you down this time, but I promise I will ________ to you next time.
21.The moment we heard the news of the earthquake, we began to ________ the work to rescue those who were trapped in the building.