There used to be a lot of tall buildings,_________?
| A．didn’t it | B．didn’t there |
| C．wasn’t there | D．did there |
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 |
The man was poor but ______ was honest.
| A．he | B．she | C．it | D．himself |