---Do you know about a very popular toy--- the yo-yo(悠悠球)?
---Yes. Filipinos(菲律宾人) invented it ________ accident. And it ________ helping kill animals.
| A．at; used to | B．on; was used to |
| C．by; used for | D．by; was used for |
.Alice found a key _________ the door on a small table.
| A．in | B．to | C．with | D．of |
It happened _________ a cold morning.
| A．at | B．in | C．on | D．for |
Look! There’s __________ice on the lake.
| A．too much | B．much too | C．a lot | D．too many |
.My uncle stopped __________ to talk to me when he saw me.
| A．working | B．to work | C．worked | D．works |
Walk ________ the supermarket and turn left _________ the second crossing.
| A．pass; at | B．past; in | C．passed; on | D．past; at |