No child under 12 is allowed to go to the lake alone；any walk close to the lake________by a parent.[ ]

If I had one million dollars, I’d donate it to _______ /′medkl/ research.

Look! My mother the floor.

pped intothe dark cave, _______ high above his head

We had a good time in the park lastSaterday Pity you weren’t there— I really ____ come but I was lookingafter my mother in the hospital