When I was little, my mother used to sit by my bed, _____ me stories till I fell asleep.

If nature does not provide man with the necessary material, it is the laboratory ____ he will turn to for it. [ ]

1Do they like _______

The drug used to treat this disease causes bad side effects, some of which ________ deadly.

We can find out ________ all the excitement is about by playing QQ’s “Happy Farm”