There ___ life on the earth for hundreds of millions of years.A. has been B. is having C. have been
My brother________play basketball.But now he likes playing baseball.
Tom,your room is too diay.You must________.
They arrived at the finishing line________the same time.We didn’t know who the winner was.
The boy started to play the guitar________the age of seven.
—I had a bad cold. —________.