The number of people invited ______ fifty, but a number of them ________ absent for different reasons.
| A．was, was | B．were, were | C． were, was | D．was, were |
He misunderstood _____ I said.
| A．that | B．when | C．where | D．what |
Is this _____ ?
| A．you are looking for | B．that you are looking for |
| C．what are you looking for | D．what you are looking for |
The trouble is _____ we are short of hands.
| A．what | B．that | C．how | D．why |
. The guide showed the travelers _____ of the factory.
| A．in | B．out | C．off | D．around |
We should mind our behaviour ______ public.
| A．at | B．in | C．on | D．out |