As our eating habits are changing，choosing what is no longer as easy as it once was．
| A．eat | B．eaten | C．to eat | D．to be eating |
made his parents worried.
| A．He came home late | B．His coming home late |
| C．He coming home late | D．Him late coming home |
is known to us all, the earth is round.
That is to sayis known to us all is that the earth is round .
| A．As, what | B．As, as | C．what ,as | D．What ,what |
They broke intoThey broke intoprison and set free all the people in prison.
| A．the ,/ | B．/,/ | C．the ,the | D．/,the |
Tom was absent from school today. We guess he.
| A．must have overslept | B．could have been overslept |
| C．should have overslept | D．ought not to have overslept |
got into the roomthe telephone rang.
| A．He hardly had, then | B．Hardly had he ,when |
| C．He had not. than | D．Not had he, when |