e boxes are too heavy for me to move— Here, I’ll give you a hand ____them

While a huge amount of money ___been spent stopping pollution , large quantities of water__still heavily polluted．

He ran off____ I could stop him

It was really helpful ______ him to take the cat to the animal centre _______ a rainy night.

230. The little boy likes plane models verymuch. He wants to be a _______and fly a plane into the sky when he grows up.