_____________ does it ____________ you to ride bikes to the club—About thirty minutes.

No chicken or duck ______ in the supermarket since the first case of H7N9 was reported dead

Betty is ______ at swimming than running.

It is ________ the pupils do in their spare time ________ really prepares them to take their place in society as citizens when they grow up

____ it snowed heavily yesterday, nobodyin our class missed the lesson． A．Though