____ the machine, the engineers paid much attention to the noise from it.
#93116
A
Having examined
B
Being examined
C
Examining
D
Examined
推荐题目
Miss Sullivan clarified the science Project in Simple but vivid language so as to make it easier for teenagers ________.
#89649
A
understanding
B
to understand
C
understood
D
to be understood
_____to reach them on the phone, we sent an email instead.
#92184
A
Fail
B
Failed
C
To fail
D
Having failed
To finish the homework, he spent four hours _______ in the study.
#97225
A
locking
B
locked
C
locked himself
D
to lock
__________of danger in the street at night, she had to go home, with a friend_________ her.
#94580
A
Warned, followed
B
Warning, following
C
Having warned, following
D
Having been warned, following
The little boy still needed the ______ 20 dollars to do with the things ______ .
#88704
A
remaining; remained to be settled
B
remaining; remaining to be settled
C
remained; remained to settle
D
remained; remaining to settled