A new technique ____ out, the yields (收成) increased by 20% .
#98832
A
having working
B
having been working
C
has worked
D
had been worked
推荐题目
It’s necessary to be prepared for a job interview. the answers ready will be of great help.
#98086
A
To have had
B
Having had
C
Have
D
Having
He is a football fan, so he is keen ________ football matches all day.
#88313
A
to watching
B
about watching
C
to watch
D
for watching
________by the beauty of nature, the girl from London decided to spend another two days on the farm.
#90826
A
Attracting
B
Attracted
C
To be attracted
D
Having attracted
_____ about Lucy, the teacher called her parents to find out why she was so often absent from class．
#96654
A
Concerning
B
Considering
C
Concerned
D
Considered
The building _____ next month will be a modern hospital.
#98345
A
built
B
being built
C
to be built
D
to built