So far, the moon is the only one of the heavenly bodies in space ______ reached by manned spaceships.
| A．that has been | B．what have been | C．which has been | D．that have been |
Calculations, which are astronomically exact, have been madewith the use of computers.
| A．possible | B．it possible | C．possibly | D．to be possible |
The man deniedany thing at the supermarket when he was questioned by the police.
| A．to have stolen | B．having been stealing | C．having stolen | D．to steal |
“Do you thinkI should attend the lecture?” she asked me.
| A．that | B．whether | C．if | D．when |
Some womena good salary in a job instead of staying home, but they decided not to work for the sake of the family.
| A．could have made | B．should have made | C．would make | D．must make |
We agreed to acceptthey thought was the best tourist guide.
| A．whatever | B．whomever | C．whichever | D．whoever |