Measures must be taken to prevent pollution ________ happily[ ]

Is your ball on the chair?— No. It’s_____the chair.

me, but I wonder if Joan is available at 3:30 this afternoon —–I’mafraid he ________ Harry Potter and the Philosopher’s Stone

We will certainly enter a good high school _____we work hard.—Yes. Our dream will come true by working hard.

He always______ my kindness and borrowsmoney from me, but never has he paid me back.