Lesson14 is as _____as Lesson13 and few students can understand them clearly. A. difficult B. easy C. more difficult
Nobody teaches______ English. I learn it all by______.
—It is useful book. —Yes, it tells us how to play football.
Although he is only a _____ boy. He knows a lot.
To help the sick people in the hospital is _____ for me .
-He didn’t go to the concert yesterday, did he? -______.He was busy studying for the tests all day.