A study ________ in the USA in 1977 showed that the chemical ASA in aspirin could prevent a stroke.
#95255
A
carrying out
B
carried out
C
working out
D
worked out
推荐题目
--- You did very well at the meeting, Black. --- Well, I regret ___________ that to the boss.
#90367
A
say
B
to say
C
said
D
saying
The message is very important, so it is supposed _______as soon as possible.
#94327
A
to be sent
B
to send
C
being sent
D
sending
Every minute he could spare was made use ____ spoken English.
#97561
A
of practising
B
of to practise
C
to practise
D
to practicing
The news shocked the public,________ to great concern about students’ safety at school．
#95419
A
having led
B
led
C
leading
D
to lead
As we all know, it was _____ that resulted in the terrible car accident.
#98204
A
because of her carelessness
B
her being careless
C
because she was careless
D
she was so careless