______ you make a promise, you should keep ______.
#33692
A
Once… it
B
If… it
C
When … one
D
Although … one
推荐题目
People who seldom take part in sports or _____ diet is high in fat will gain weight quickly.
#33499
A
who
B
whose
C
which
D
what
With some technical problems to be solved, it may be a while the system is put into use.
#33190
A
when
B
after
C
since
D
before
The woman ______ you met at my home was a teacher of English. Which of the following is wrong ?
#32033
A
whom
B
that
C
which
D
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