He wasn’t _______ to join the army.A. such old B. so old C. old enough
The light bulb ______ by Edison in the middle of the 1780s.
The old scientist has made a great contribution the moon.
—What is the table made _______? —Wood.
Many countries have a lot of rockets into space.
—How can I learn English well? —You will learn it well ________ you practice speaking it often.