With the worldwide oil crisis, the price of oil has been raised ______ 15%.
____puzzled the mother most was____the son would never agree with her.
—____inthisstreet? —IthinkMr.Blackistherichestman.
I haven’t found my watch yet;in fact,I’m not sure____I could haved one with it.
I was advised to arrange for insurance____I needed medical treatment.
They were surprised that a four-year-old boy should work out such a difficult problem ____they themselves couldn’t.