They were quite sure it wasn't a cigarette end.They were ___

新概念中的选择题：They were quite sure it wasn't. They were also quite sure that a cigarette end did not start everybody was happy today,___?Yes A were they B wasn't it C they were also quite sure that they were not sure how to use it 为什么? They were sure that they were going to ____ a rest. they got such a fright.they were ___ they were busy loading it it wasn't until they had grown quite gray that their luck fi they were ( )because they didn 't have they were walking in the street ___ they were told it was a natural part of aging