Every one of us must know：________we live can we save the earth.
#82155
A
by changing the way only
B
only by changing the way
C
by only changing the way
D
by changing only the way
推荐题目
By the side of the teaching building of our school _____, which was completed in 2009.
#82862
A
there standing the library
B
does the library stand
C
the library stands
D
stands the library
So difficult ___it to work out the problem that I decided to ask Tom for advice.
#84500
A
I did find
B
did I find
C
I have found
D
have I found
Only when he apologizes for his rudeness________ to him again.
#80927
A
I will speak
B
will I speak
C
do I speak
D
I speak
Not until he went through real hardship _____the love we have for our families is important.
#81018
A
had he realized
B
did he realize
C
he realized
D
he had realized
He failed the midterm examination and only then ________how much time he had wasted.
#82282
A
he realized
B
did he realize
C
he had realized
D
had he realized