—Will you go to Mary’s birthday party?
—No, ____ invited, I can’t go to it. I’ll be too busy then.
| A．if | B．unless | C．even though | D．when |
Not the way he did it but his words _____ criticized by people present.
| A．has | B．had | C．is | D．were |
With a lot of difficult problems_____， the newly-elected manager is in a dilemma.
| A．settled | B．settling | C．to settle | D．being settling |
I still remember_____ to visit the Mountain Tai when I was young and I am longing to visit it again.
| A．to take | B．to be taken | C．taking | D．being taken |
_____ many times, he finally understood it.
| A．Told | B．Telling | C．Having told | D．Having been told |
--- Cloud I ask you a rather personal question?
---- Sure, _______.
| A． pardon me | B． go ahead | C．good idea | D．forget it |