----It’s traditional in China to firecrackers on Spring Festival.
----But the serious smog（雾霾）nowadays needs us to stop it.
| A．give out | B．set off |
| C．put off | D．show off |
I am sorry. I __________ the dictionary in my home.
| A．forget | B．forgot | C．left | D．leave |
Students should pay attention ____________listening to the teachers in class.
| A．in | B．on | C．with | D．to |
I used to all my pocket money clothes and snacks .
| A．spend …on | B．spend … in | C．pay …on | D．pay … in |
often do some work at weekends .
| A．Voluntary …volunteers | B．Volunteers …voluntary |
| C．Volunteers …volunteered | D．Volunteers … volunteering |
ORBIS doctors many patients, but patients do not have money to pay for the .
| A．treat …treatment | B．treatment …treat | C．treating …treated | D．treated ….treating |