—Shall we go out for a walk?—Sorry. This is not the right ____ to invite me. I am too tired to walk. 
#4943
A
moment
B
situation
C
place
D
chance
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From his ____ voice on the phone, I know everything is going under way. 
#4618
A
satisfactory
B
satisfying
C
satisfied
D
satisfaction
At a rough estimate .Nigeria is           Great Britain.
#4872
A
three times the size as
B
the size three times of
C
three times as the size of
D
three times the size of
He was busy writing a story, only ______ once in a while to smoke a cigarette.
#4946
A
to stop
B
stopping
C
to have stopped
D
having stopped