问题

______have you been learning to swim ? —-Half a year.
A: Howlong
B: How often
C:How far
D: When
B: How often
C:How far
D: When
正确答案是:
同类题型
She ____ his number in the phone book tomake sure hat she had got it right.
Where is your new home now—In the new developed zone. But Idowntownfor five years.
Only when you are living in a foreign countrytheimportance of English.
Now, everybody, please turn to Page _____and look at the _____ picture.