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Two answer are correct.
I haven't seen Mark for such a long time.
A:How many children does he have?
B:How many children do he have?
C:How many children he has gotten?
D:How many Children has he got?
答案：AD
One answer is correct.
When did you last go on holiday?
A: I was gone for three months.
B:I went since three months.
C: I have gone for three months.
D: I went three month ago.
答案：D
One answer is correct.
By the year 最新或2022（历届）年, I ____ for the company 25 years.
A:Will be working
B:will work
C:had been working
D:will have benn working
答案：D
One answer is correct
The man sitting next to me on the plane was very nervous.
A:He hasn't flown before.
B:He didn't fly before.
C:He hadn't flown before.
D:He wasn't flying before.
答案：C
One answer is correct.
Athens is older than sydney.
A:Sydney isn't older as Athens.
B:Sydney is less older as Athens.
C:Sydney is as yonger as Athens.
D：Sydney is not older than Athens.
答案：B