— Did you find the missing couple in the mountain yesterday?— No, but we________

题型：福建省同步题难度：来源：

— Did you find the missing couple in the mountain yesterday?
— No, but we________to get in touch with them ever since. [     ]
A. have tried
B. have been trying
C. had tried
D. had been trying

答案

举一反三

One of my high school friends________in London ever since she moved there in 1998. [      ]
A. lived
B. is living
C. lives
D. has been living

题型：福建省同步题难度：| 查看答案

The secretary________letters all the afternoon and there are still two letters to finish. [ ]
A. is typing
B. had type
C. has been typed
D. has been typing

题型：陕西省同步题难度：| 查看答案

Unrest and violence in North Africa and the Middle East ____ at their fastest rate since 2008.   [     ]
A. have been raising
B. have been rising
C. have raised
D. have risen

题型：内蒙古自治区模拟题难度：| 查看答案

— That"s the third time he"s won the award in this field.
— Yes. He ________ his maximum potential in the past decade. [     ]
A. explored
B. is exploring
C. has been exploring
D. has explored

题型：模拟题难度：| 查看答案

— Hi, Jack!When did you arrive in Berlin?
— Last weekend. I  __________  a different culture since then. [      ]
A. was experiencing
B. will be experiencing
C. have been experiencing
D. had been experiencing

题型：模拟题难度：| 查看答案