________you work harder, you will certainly succeed.
A. Though
B. If
C. Because
D. For
查看答案
________you have come, you must not go away so soon.
A. Now that
B. For
C. Because
D. So that
Because they worked hard________they finished it in time.
A. so
B. so that
C. that
D. /
________a large group, your tone should be clear and loud.
A. When addressing
B. While addressing
C. Upon addressing
D. When you address
He acted________nothing had happened to him.
A. as if
B. as
C. when
D. if