______ to reach them on the phone, we sent an email instead.
A. Fail B. Failed C. To fail D. Having failed
Our bodies are strengthened by taking exercise. ______, our minds are developed by learning.
A. Probably B. Likely C. Similarly D. Generally
American Indians ______ about five percent of the U.S. population.
A. fill up B. bring up C. set up D. make up
The problem of global warming is serious. ______, the sea levels have risen a little.
A. As a result B. On the contrary C. In particular D. In other words
At the beginning of class, the noise of desks ______ could be heard outside the classroom.
A. opened and closed B. to be opened and closed
C. being opened and closed D. to open and close
Yesterday morning he got up earlier than ______, for it was not a(n) ______ day.
A. common; usual B. common; ordinary C. usual; normal D. usual; ordinary
