1. I was speaking to Ann on the phone when suddenly we were_______.
(a) hung up (b) hung back (c) cut down (d) cut off 2. She wondered if she could have the opportunity to spend _______here so that she could learn more about the city.
(a) sometimes (b) some time (c) sometime (d) some times
3. Ms. Breen has been living in town for only one year, yet she seems to be _______with everyone who comes to the store.
19.It was a bold idea to build a power station in the deep valley, but it ________as well as we had hoped.
(a) came off (b) went off (c) brought out (d) made out
20. To survive in the intense trade competition between countries, we must ______the qualities and varieties of products we make to the world market demand .