My uncle arrived on a Wednesday,________ I was very busy.
| A．which | B．where | C．when | D．why |
The Browns held _____ they called” family day"once each year.
| A．that | B．what |
| C．which | D．when |
The stone on the river bank rolled under her feet； she was _____into the river，and she called out for help.
| A．being jumped | B．jumped |
| C．pulled | D．being pulled |
-What do you do yesterday afternoon?
-I went to the bookstore，___ some books and visited my uncle.
| A．to buy | B．bought |
| C．Buy | D．buying |
Exercise is ______ as any other to lose unwanted weight.
| A．so useful a way | B．as a useful way |
| C．as useful a way | D．such useful way |
-Do you think we can get there on time?
-Yes，_______ the truck doesn’t break down.
| A．even if | B．unless |
| C．until | D．so long as |