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
We have got a general idea of how our new flat will be decorated, but nothing ______ at the moment.
#18186
A
ambiguous
B
ambitious
C
concrete
D
permanent
As children, they are _____ about the things that they don't know about
#18001
A
curious
B
particular
C
angry
D
careful
With sufficient scientific information a manned trip to Mars should be _____.
#20853
A
obtainable
B
potential
C
considerable
D
feasible
(2009陕西宝鸡质检)People eat vegetables per person today as they did ten years ago.
#20833
A
as twice many
B
as twice as many
C
twice as many as
D
twice as many
— Do you know something about Kwanzaa? — It is _____festival celebrating the culture and history of African Americans.
#20387
A
a seven-day
B
a seven-days
C
a seven day
D
seven days