Do you often help your mother______?
| A．with clean the house | B．cleaning the house |
| C．to cleaning the house | D．clean the house |
You____touchanelectricfire.It'sdangerous.
| A．need | B．must |
| C．needn't | D．mustn't |
—_______.Whereisthebank?
—It'sovertherebythepostoffice.
| A．Excuseme | B．Sorry |
| C．Comeon | D．Hello |
TheGreatWallofChinais_______wallintheworld.
| A．long | B．longer |
| C．longest | D．thelongest |
Thinkofanumber,_______don'ttellmewhatitis.
| A．nor | B．so |
| C．or | D．but |
—Iamjustgoingtothe_____.Doyouwantanything?
—Yes,abagofrice.
| A．market | B．classroom |
| C．library | D．park |