They use computers to keep the traffic smoothly.
#98965
A
being run
B
run
C
to run
D
running
推荐题目
Clouds are gathering, I think we’d better ______for the hotel in case it ______to rain.
#95632
A
to head; starts
B
head; starts
C
heading; start
D
heads; start
(2013·陕西高考)Let those in need ________ that we will go all out to help them.
#88969
A
to understand
B
understand
C
understanding
D
understood
Was it ______ his daughter with her work _____ the man spent the whole evening at home?
#97625
A
to help, that
B
help, when
C
helping, that
D
helped, which
In some languages, 100 words make up half of all words _______in daily conversations.
#91073
A
using
B
to use
C
having used
D
used