good manners to say “Sorry” when you knock into someone but no need to say it again and again .
#92894
A
There are ; there is
B
It is ; there is
C
There is ; it is
D
It is ; it is
推荐题目
AIDS is said_______ the biggest health challenge to both men and women in the earth over the past four years.
#91954
A
that it is
B
to have been
C
that it has been
D
to be
Using many symbols makes ______ to put much information on a single map.
#94829
A
possible
B
it possible
C
that possible
D
it is possible
It is a long time _______they separated, but it won’t be long ____ they meet again.
#94026
A
since; before
B
after; when
C
since; when
D
after; before