I don't think we have done much enough to protect the
environment from pollution.
In addition to writing compositions every week, our English
teacher assigned us eight books to read during the summer
After succeeding in landing on George Island the captain
sent a radio message to the headquarters by radio.
Mary thought it difficult to carry out her plan all by herself.
I was busy making a new device for catching rats when Mark
came and dragged me to a flower show.
They have arranged for us to visit the Great Wall tomorrow.
I'm sure we'll have a good time there.
It is well known that lung cancer is caused at least in
part by smoking too much.
I do hope that you can come up with a better solution than this one.
At first glance the picture didn't look very good, but
after examining it carefully, we found that it was indeed a