On July 20, 1969, Neil Armstrong become the first man _________foot on the moon .
#94109
A
setting
B
set
C
to setting
D
to set
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There are the books ______ my brother.
#95975
A
belonged to
B
belonging to
C
that are belonged to
D
belong to
The question ______ last night was of great importance. 
#97848
A
discussed
B
discussing
C
to be discussed
D
discuss