By the year 2010, scientists probably ______ an effective treatment for cancer. A: will have discovered B: are discovering C: will be discovering D: have discovered

Critical reading is a technique for discovering information and ideas that are ______, active, and _________.

The scientist ( )a new bacteria in 1912. A: discovered B: was discovering C: discovers

4. After discovering the anger there should be discussion and self-examination in order to __________(relieve) the anger.

What I do ( ) is discovering your strengths and using them to become successful.

This part of the writing process involves choosing a topic to write on and discovering ideas for your essay.

The scientist ________ a new bacteria in 1912. A: discovered B: was discovering C: discovers D: have discovered

Madam Curie is believed ___ the radium. A: having discovered B: to discover C: to have discovered D: discovering

The Vikings are believed ________America. A: to have discovered B: to discove C: in discovering D: to have been discovered

We’re looking forward to his new _______ . A: discover B: discovered C: discovery D: discovering