They’ve made full preparations, but it remains ______whether they will be able to do a good job in the experiment.
#90623
A
to see
B
seen
C
being seen
D
to be seen
推荐题目
Most of the students enjoy_____ stamps.
#97556
A
collect
B
to collect
C
collecting
D
collected
She pretended _______ me when I passed by. 
#98790
A
not to see
B
not seeing
C
to not see
D
having not seen