The chairman of the union made it clear at the meeting ______ he would not step down form his position as chairman.
A. in which
B. where
C. because
D. that
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______ Ms. Wang reached the post-office, she discovered she had left the letter at home.
A. Just as
Because
C. As long as
D. When as
The first step in preparing such a program is to draw a flow chart, ______ are shown opposite.
A. two examples of it
B. two examples of which
C. whose two example
D. which two examples
______ the world began, nations have had difficulty in keeping peace with their neighbors.
Although
B. When
C. Until
D. Ever since
He went to work so late ______ the manager had to send for him again before he arrived.
A. as
B. that
C. for
D. when