You should have informed me that the lecture was canceled. I ________ all the way here through the heavy rain.
| A．mustn’t have run | B．can’t have run | C．shouldn’t have run | D．needn’t have run |
The visiting minister expressed his satisfaction with the talks, _________ that he had enjoyed his stay here.
| A．having added | B．to add |
| C．adding | D．added |
--- Where did you get to know him?
--- I think it was in the factory______ I worked ten years ago.
| A．where | B．that | C．/ | D．when |
—Why does the lake smell terrible?
—Because large quantities of water .
| A．have polluted | B．have been polluted |
| C．is being polluted | D．has been polluted |
—Hi, Tom, why are you looking so tired?
—I'm tried. Because I ______ the living room all day.
| A．painted | B．have been painting |
| C．have painted | D．had painted |
__________ is troubling me is __________ I don’t understand __________ he said.
| A．What; that; what | B．It; that; what |
| C．That; that; what | D．what; that; which |