President Obama told television viewers that he saw ______ as his duty to run for a second term.
#15249
A
one
B
that
C
this
D
it
推荐题目
. Some animals are in danger, and the scientists are doing ___ they can ___ them.
#16274
A
that; to save
B
whatever; to save
C
what; save
D
the thing; save
Wherever he is, he makes ______ a rule to give his mother a call every day.
#14669
A
him
B
it
C
that
D
this
They produced two reports, ______ of which contained any useful suggestions.
#15263
A
neither
B
either
C
all
D
none
in the regulations that you should not tell other people the password of your bank account.
#15835
A
What is required
B
It is required
C
What requires is
D
It requires