____polite to others and you can get friendship in turn.
#80317
A
Be
B
To be
C
Being
D
/
推荐题目
So quickly is a possibility today may be a reality tomorrow.
#82504
A
are science and technology advancing that
B
science and technology advancing are that
C
are science and technology advancing that what
D
science and technology are advancing what that
“ On no account” , the teacher said, “________ open in day and night. ”
#79982
A
the door to the basement is to be left
B
the door to the basement was to be left
C
is the door to the basement to be left
D
was the door to the basement to be left
---I want to know if your son will go to the zoo. If your son does, so __________. --- Well, he is glad to be there.
#82735
A
does
B
he does
C
will mine
D
does mine
He jumped at the opportunity when he saw the advertisement in a newspaper, because barely _____ make ends meet.
#80906
A
they could
B
could they
C
they couldn’t
D
shouldn’t they
The research is so designed that once ____ nothing can be done to change it.
#84058
A
begins
B
having begun
C
beginning
D
begun