题目内容：

三道英语填空
1.______ do you play basketball Three times a weeks.
a how often
b how much
c when
d where
2.The ticker is on the floor.Would you please ______ for me
a pick it up
b pick up it
c pick up them
d pick them up
3.What did you see ______
a now
b every
c since 1990
d just now
1 a 2 a 3 d
请写出选这个答案的原因.