When Peter speaks in public, he always has trouble        _ the right things to say.
#88592
A
thinking of
B
to think of
C
thought of
D
think of .
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He wrote to his friends ______ information.
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A
asked for
B
to ask for
C
ask for
D
asks for
Upon ________ his studies, he started travelling in China. 
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A
finish
B
finishing
C
he finished
D
finished
The lecture mainly deals with the trouble young children have _______ right from wrong.
#91248
A
distinguished
B
distinguishing
C
to distinguish
D
to be distinguished