模 块 6 unit 16 stories 一、语法专项训练完成下列句子。 1.so far this year we ________ (see) a fall in house prices by between 5 and 10 percent. 2.the hotel wasn't particularly good.but i ________ (stay) in many worse hotels. 3.we first met on a train in 2000.we both felt immediately that we ________ (know) each other for years. 4.—i'm sure andrew will win the first prize in the final. —i think so.he ________ (prepare) for it for months. 5.i like these english songs and they ________ (teach) many times on the radio.