— Look at the boy playing basketball on the ground. Is it George?— It ________ be him. He told me he would play basketball after class, but he’s not sure.
You have to leave now________you can catch the early bus.
She is going to get married________John on New Year’s Day.They are________their twenties.
I was________tired that I couldn’t go on walking.
The sweet smell of the flowers in the garden comes in_______the open window,making us feel in a good mood(心情). A.on B.with C.through
Did you know that the earth is home to________animals?