The heavy snow lasted for a week, _____ a serious traffic confusion in the whole area.
#94158
A
causing
B
caused
C
having caused
D
being caused
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_____ he’s only been learning English for a year, he speaks it very well.
#98838
A
Considered
B
Considering
C
Having considered
D
To consider
______the room, a letter was seen lying on the desk.
#95493
A
Entering
B
Entered
C
After entering
D
When he entered