16. Both teachers and parents hold the view that young children should(teach)___________ road safety rules to avoid accidents.
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17. You can hardly avoid(meet)__________her if you both work in the samedepartment.
18. This book (send) ___________ to me several years ago by my bestfriend is my favourite book.
19. Customers can refuse (accept) _________ the goods where it has adoubt about their origin.
20. The bright and (comfort) ___________room has a large living room withseparated sleeping area, kitchen and bathroom.