What do you guess our friend Bob when we get to his home?
| A．does | B．would do | C．has been doing | D．will be doing |
___ he has finished writing the novel is unknown.
| A．If | B．Whether | C．When | D．While |
___ it was already dark, they went on working in the fields.
| A．If | B．Whether | C．But | D．Though |
You will find friendly people ___ you go in China.
| A．where | B．and | C．wherever | D．so |
He lay ___ the grass was the thickest.
| A．where | B．when | C．that | D．after |
Go back ___ you came from.
| A．until | B．where | C．which | D．when |