I take Mr. Lin as a role ________ in English learning.
A. friend
B. model
C. partner
D. peer
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Professor Beamer always ________ the importance of solving problems independently.
A. says
B. speaks
C. regards
D. emphasizes
The volunteers are doing good things for no ________.
A. reward
B. prize
C. rank
D. commission
The two countries will develop their relationship on the ________ of mutual understanding and respect.
A. basic
B. basis
C. background
D. knowledge
Three ________ witnessed the traffic accident.
A. passer-by
B. passer-bys
C. passers-by
D. passers-bys