We the difficulty together, but why didn't you tell me?
B. might face
C. could have faced
D. must have faced
Whether ways will be found to stop pollution or not is just___________ worries the public.
| A．why | B．which | C．that | D．what |
—Have you seen Rose recently?
— No．It’s five years _____ I met her．
| A．since | B．after |
| C．when | D．before |
The tomato juice left brown ____ on the front f my jacket．
| A．spots | B．points |
| C．tracks | D．traces |
When I talked with my grandma on the phone, she sounded weak, but by the time we ____ up, he voice had been full of life．
| A．were hanging | B．had hung | C．hung | D．would hang |
—Wow! You’ve got so many clothes．
—But _____ of them are in fashion now．
| A．all | B．both |
| C．neither | D．none |