Frank often wears a mask _____ he can keep fit in the foggy and hazy (霾) weather.
| A．only if | B．until |
| C．so that | D．even though |
I think ____ can help you except Lee. If he can’t, nobody can.
| A．someone else | B．no one else | C．anyone else | D．everyone else |
I _______50 dollars on the shoes.
A.spent B paid C. cost. D. took
Ben told Linda that Marcia ______a surprise party for her the next evening.
| A．was going to have | B．would be | C．was going to be | D．would go to have |
The more exercise you take, the ____you will be.
| A．weak | B．healthier | C．luckier | D．worse |
I don’t know when he ____. But if he ____, I’ll ring you up.
| A．comes, will come | B．will come, will come |
| C．comes, comes | D．will come, comes |