John opened the door. There    he had never seen before.
#81241
A
a girl did stand
B
a girl stood
C
did a girl stand
D
stood a girl
推荐题目
__can you find out how many chickens there are! 
#83918
A
Counting them
B
By counting them
C
Only by counting them
D
Only have you counted them
–- Helen, are you going to the airport to see Jack off the day after tomorrow? -- _____________, I would go.
#79981
A
Were he to leave tomorrow
B
If he was about to leave tomorrow
C
Was he to leave tomorrow
D
If he would leave tomorrow
Never ______ so excited because it is the first time that I ______ such a fantastic experience.
#81260
A
I have been; had
B
have I been; have had
C
have I been; had had
D
I have been; have
Only when she reached her office____ she had left her key at home.
#81566
A
she realizes
B
does she realize
C
she realized
D
did she realize