Upon ______ the office, he saw the message on his desk. 
#96372
A
he arrived
B
arrived at
C
arriving at
D
arriving
推荐题目
A middle-aged woman came _____ to the bus stop only _____ the bus had gone.
#92945
A
to run; to find
B
running; to find
C
and ran; finding
D
running; finding
Farmers in China began to use tractors ___ cattle for farming work.
#93738
A
to take the place of
B
take place of
C
to in place of
D
in the place of