Most birds find it safe to sleep in the trees,but_______they have eggs or young chicks,they don’t use a nest.
#71783
A
why
B
how
C
unless
D
where
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You’d better choose someone____ you think ___ kind and friendly to help you.
#73373
A
whom; to be
B
who; is
C
that; is
D
which; to be
______ for something, a receipt is given to you.
#70486
A
Paying
B
Having paid
C
When you have paid
D
To be paying