________ where we can stay for a week.
A．Next is another hotel to it B．Next to it another hotel is
C．Next to it is another hotel D．It is next to another hotel is
Carbon dioxide(CO2)_______ from burning fuels is the most common of the so-called greenhouse gases.
A．producing B．having been produced
C．to be produced D．produced
We must apply what we have learned to our daily work because in no case_____ from practice.
A．should theory separate B．theory should be separated
C．theory should separate D．should theory be separated
Mrs. White found her husband surrounded by letters and papers and_______ very worried.
A．look B．looked C．looking D．to look
----What are you busy with?
---- The conference_______ in our city next week.
A．held B．to be held C．be holding D．will be held
_______ of danger in the street at night, she had to go home with a friend_______ her.
A．Warned; accompanied B．Having warned; accompanying
C．Warning; accompanying D．Having been warned; accompanying
