I will try my best to stop my son from _____ the same mistake.
| A．make | B．made | C．makes | D．making |
What difficulty I had _____ the dirty walls! I had no choice but to have it ____ again.
| A．clean, paint | B．cleaning, painting |
| C．cleaned, to paint | D．cleaning, painted |
You don’t know ________ I want to see you again. It’s years since I saw you last time.
| A．how soon | B．how long | C．how often | D．how much |
Do you know who _______ help if you feel stressed?
| A．to ask | B．asks for | C．to ask for | D．asks to |
He ran so fast that he ________ my cup. How careless he is!
| A．knocked over | B．put away | C．knocked on | D．put up |
— Did you see Dr Ma yesterday afternoon?
—When I got to his office, he ______. So we just talked little.
| A．left | B．has left | C．was leaving | D．had left |