They use computers to keep the traffic _____ smoothly. 
#98040
A
being run
B
run
C
to run
D
running
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The country has already sent up three unmanned spacecraft, the most recent ________ at the end of last March.
#95330
A
has been launched
B
having been launched
C
being launched
D
to be launched
 ______ quickly, and you will be able to catch the train.
#89754
A
To get up
B
Getting up
C
Get up
D
If you get up