I had a lot of trouble______the book you wanted.
| A．on finding | B．in finding | C．to find | D．at finding |
We’re very sorry,really,but we______the window.
| A．do not mean breaking | B．did not mean breaking |
| C．did not mean to break | D．do not mean to break |
The poor man was made______a big family.
| A．supporting | B．supported |
| C．to support | D．to be supported |
My teacher______of us to hand in the compositions tomorrow.
| A．asked | B．demanded | C．requested | D．begged |
______,please correct my mistakes in the composition.
| A．If so | B．If possibly | C．If not | D．If any |