问题
_______have you been learning to swim?—Half a year. [ ]
A: How long
B: How often
C: When
D: How far
B: How often
C: When
D: How far
正确答案是：
同类题型
The soccer ball is 80 yuan .—I only have 50 yuan . I can’t _______ it .
Jim, who taught ________Chinese before you came to school?—Nobody. I learned it by _______.
My parents will go to Mount Emei for ____ holiday. –That means you will have to be at home by _____.
I think the car was invented _____ 1885.[ ]
He has no money to buy a house, so he wants ______ one ______ his friends.