A.always
B.frequently
第1题:
A. many - to - one
B. one - to - one
C. one - to - many
D. many - to - many
第2题:
第3题:
第4题:
Most Americans would prefer to keep their problems ________ themselves, and solve their problems ______ themselves.
A. to; by B. by; to C. for; to D. in; on
第5题:
第6题:
单词people和better的重读、次重读(弱读)模式不同。