See? The strange man I saw yesterday _____ around my house again. Should I call the police？
A. walk B. walked C. is walking D. has walked
---It is a long time ______ I saw you last．
---Yes．And it will be a long time ______ we see each other again．
A. when; before B. after; when C. since; before D. since; until
I can’t say which type of tea tastes better. It’s just a(n) ______ of personal preference.
A. affair B. matter C. variety D. problem
Liu Fang is a company CEO now, but she ____ as a teacher in a middle school for three years.
A. worked B. has worked C. works D. had worked
— How was your holiday?
— It couldn’t have been _____. I just stayed in the hotel because it was raining most of the time.
A. boring B. more boring C. most boring D. less boring
The factory produces half a million pairs of shoes every year,80%________ are sold abroad.
A. of them B. which of C. of which D. of that
