The bus got in the snow and we had to walk the rest of the way.
| A．to be stuck |
| B．stick |
| C．stuck |
| D．sticking |
Eye doctors recommend that a child’s first eye exam ____at the age of six months old.
| A．was | B．be | C．were | D．is |
______how others react to the book you have just read creates an added pleasure.
| A．Hearing | B．Hear | C．Having heard | D．To be hearing |
If we leave right away, ____we’ll arrive on time.
| A．hopefully | B．curiously | C．occasionally | D．gradually |
The children, ____ had played the whole day long, were worn out.
| A．all of what | B．all of which | C．all of them | D．all of whom |
As the world’s population continues to grow, the ___of food becomes more and more of a concern.
| A．worth | B．supply | C．package | D．list |