The old couple, ________ in the small village for years, can tell the names of all the villagers.
| A．living | B．lived |
| C．having lived | D．to have lived |
My grandmother is over 90 years old, ______loss of memory.
| A．suffering from | B．suffered from |
| C．to suffer from | D．suffer from |
The boys followed the marks that they ______, until finally they found their way back to the campsite.
| A．left | B．have left |
| C．had left | D．have been left |
He won’t apologize to us ______he is wrong.
| A．as if | B．in case |
| C．since | D．even though |
__________the truth, we’re sure she won’t tell a lie.
| A．Whichever | B．Whatever |
| C．Whenever | D．However |
Mr. Baker including some tourists ______ the Great Wall before, so they headed for the Forbidden City.
| A．has gone to | B．have gone to |
| C．has been to | D．have been to |