网址：http://m.1010jiajiao.com/timu3_id_3250678[举报]
－________ do you play sports?
－Twice a week
A．How often
B．when
C．What
选择正确答案
I am watching TV when a friend of mine _____.
A. come
B. comes
C. came
单词释义（根据英文释义补全单词）
A c______ goes to primary school when he is six years old.
(A person between birth and puberty(青春期）)
________ do you go to school?
A．How
B．What
C．When
他骑车时不小心率坏了腿。
He _____ his leg when riding a bike.