A person _______such kind of work must be careful enough,________ an eye on any sign of the  possible result .
#98504
A
to do ; to keep
B
doing ; keeping
C
to do ; keeping
D
doing ; to keep
推荐题目
It is suggested that all these gifts be mailed immediately _________ in time for Christmas.
#88871
A
in order to have received
B
so as to receive
C
so as to be received
D
so as to be receiving
She smiled happily,________ a set of amazing white teeth to us.
#90825
A
exposing
B
being exposed
C
exposed
D
to expose
It’s a bad habit to leave the work ______.
#95527
A
undo
B
undone
C
undoing
D
done
The squirrel was lucky that it just missed___________.
#98362
A
catching
B
to be caught
C
being caught
D
to catch