______ such heavy pollution already, it may now be too late to clean up the river.
| A．Having suffered | B．Suffering | C．To suffer | D．Suffered |
---Where is the manager? I have something important to discuss with him.
--- He is at the airport now. He _________ for Beijing.
| A．has left | B．leaves | C．left | D．is leaving |
__________ hungry I am, I never seem to be able to finish off this loaf of bread.
| A．Whatever | B．Wherever | C．However | D．Whenever |
You have been reading to me __________ James went out.
| A．the moment | B．before | C．when | D．ever since |
He was watching her doing it with a _________ look on his face, as if to say that he would not change his mind.
| A．determining | B．determined | C．surprising | D．surprised |
---I won’t have anything __________ against her.
---No. I won’t have that sort of thing __________ again.
| A．said; happen | B．saying; happening | C．said; happened | D．saying; happen |