Tom’t uncle must be an engineer, ____?
| A．mustn’t he | B．can't he | C．isn’t he | D．needn’t he |
Eugene’s never willing to alter any of his opinions. It’s no use ______ with him.
| A．to argue | B．arguing | C．argued | D．having argued |
I regret ______ that we have no news for you.
| A．to say | B．saying | C．to have said | D．having said |
When he saw a little boy ______ in the river, he took off his shirt and jumped into the water.
| A．struggles | B．struggling | C．to struggle | D．struggle |
—What do you think of the book?
—Oh, excellent. It’ s worth ______ a second time.
| A．to read | B．to be read | C．reading | D．being read |
Don’t ________ women. They are as important as men for the development of society.
| A．look up to | B．look down upon | C．look out for | D．look forward to |