The collapse of the World Trade Center has put US economy in a difficult __________.
| A．occasion | B．case | C．situation | D．background |
Shanghai is really a fascinating city and we’ve decided to stay for two____ weeks.
| A．another | B．other | C．the other | D．other’s |
---- Who is making so much nose in the garden?----____ the children.
| A．It is | B．They are | C．That is | D．There |
---- ____of them is your English teacher? ----The man wearing a blue coat.
| A．Which | B．Who | C．What | D．Whom |
___doesn’t seem to have been any difficulty solving the problem.
| A．It | B．He | C．There | D．That |
____ was in 1979____ I graduated from university.
| A．That; that | B．It; that | C．That; when | D．It; when |