There was enough evidence to prove that the explosion in Robinson’s house _______ the leak of natural gas.

I’m going to Beijing and my wife’s going [ ]

______ regular exercise is very important, it’s not a good idea to exercise too close to bedtime.

______ is it from your school —About 10 minutes by bike.

In the supermarket foreign names of the products got_______, and I was confused about what to buy. [ ]