Sex education is a sensitive area for some parents, and thus it should remain _________.
#19020
A
random
B
previous
C
optional
D
vital
推荐题目
Paper bags produced every year are ______ the world’s production of vehicles.
#18981
A
three times the weight of
B
three times weight of
C
as three times heavy as
D
three times as heavier as
. There were no tickets _____ for Friday’s performance.
#19935
A
preferable
B
possible
C
considerable
D
available
After a thorough search, the rescue team finally brought the mountain climbers back, __________.
#19074
A
safely and soundly
B
safe and sound
C
safely and sound
D
safe and soundly