20. (A)An old man walking (B)along the road (C)stopped (D)talking to us yesterday.
21. Mike (A)usually (B)drives to work, but (C)today he (D)walks.
22. Do you want to (A)get up by yourself, or would you (B)like (C)me to (D)wake up you ?
Circle A, B, C or D to choose the most suitable w ...
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