When you reach our company at 5:00 pm, I _______ there to discuss a problem with you.

— You were late again, Peter.
—Sorry, I ______ to be here on time, but the traffic on the roads _____ heavy.

－Why does the river smell terrible?
－Because large quantities of water______．

I can guess you were in a hurry. You       your sweater inside out.  

    Is there anything wrong , Bob ? You look sad .
     Oh ,nothing much . In fact , I      of my friends back home .

He will have learned English for eight years by the time he _______ from the university next year．

I have to see the doctor this afternoon because I ____ a lot lately.

I feel it is your husband who _______ for the spoiled child.

It’s very dangerous to _______ these viruses without any protection.

An exhibition of paintings ___ at the museum next week.