____paragraph is a group of sentences about some related subject. Readers must know what the main idea of ___paragaph is in order to understand ___information they are reading.
American President Obama, together with some members of his government, _____ going to visit China next month.
_____ in the iron cage of the zoo, the tiger got quite angry.
No sooner _____ back to the kitchen than the doorbell rang.
It is no use fishing for golden fish in this river; there are _____ left.
Writing has _____ much of my spare time, but it has given me a great deal of pleasure.