At times, parents find _______ difficult to talk with their teenage children.
| A．them | B．this | C．that | D．it |
Come here, Kate. I have ______ nice to show you.
| A．something | B．anything | C．nothing | D．everything |
Both the children ______ good at maths.
| A．is | B．be | C．are | D．being |
She is very happy ______ she has got many good friends.
| A．or | B．because | C．unless | D．so |
— ______ do you do in your free time?
— Some outdoor activities.
| A．Which | B．What | C．When | D．Where |
The post office is closed ______ Saturday afternoon.
| A．on | B．in | C．of | D．at |