What really worries us is ______ the explorers can accurately locate themselves with the device in case of bad weather.
#79509
A
that
B
where
C
what
D
whether
推荐题目
One concern people have now is ______ printing passengers’ names and ID numbers on tickets will make it harder to protect their private information.
#79377
A
whether
B
when
C
how
D
that
He didn't go by bike with me.That's ________ there was something wrong with his bike.
#79319
A
because
B
why
C
how
D
when
The South Pole isn’t _____ people could find a comfortable place to live, for the average winter temperature there is below-40℃.
#79485
A
which
B
that
C
what
D
where