Dr. Frank failed many times but he finally _____ to find a successful way to solve the problem.
| A．broke off | B．broke up | C．broke down | D．broke through |
Considering your income, you should be able to ______ at least twenty dollars a week.
| A．put forward | B．put in | C．put down | D．put aside |
—Mr. Harry, we want to hear what you think about the reform being carried out in our school.
—OK, I _____ to that.
| A．am coming | B．have come | C．came | D．come |
As the quality of the city’s air continues to give rise to ______, the residents are encouraged to set off fewer fireworks.
| A．descriptions | B．concerns | C．compromise | D．emergency |
I’d rather ride a bike as bike riding has _____ of the trouble of taking buses.
| A．much | B．all | C．neither | D．none |
As a simple and convenient way to get ______ latest fashions online, online shopping also has ______ major problem — you can’t see whether they fit or not.
| A．the; the | B．/ ; the | C．the ; a | D．/; / |