Cho e hỏi bài này với ạ Fill in the blanks with suitable particles and prepositions. 1. Bob, don’t be cruel and stop mocking...............the way Lucy pronounces French words. 2. Tell the children to stop fooling around or I’ll lose my patience.............them. 3. If you had informed us ............... advance that you wouldn’t be giving any seminar we wouldn’t have gone to the trouble of making all the necessary arrangements. 4. Why don’t you send a message ................return of post? It will be delivered more quickly, then. 5. The tanker had already been ............... sea for two weeks when it struck the iceberg. 6. She said she had great faith .............. us. I think we’ll have to do our best not to let her down. 7. Never before have I been more reliant .................my parents than during the long stay in hospital. 8. Their situation was critical. They had no map, their water supplies were running low and they had no food to subsist................. 9. The mechanic was..................great pains to repair the engine, but in the end, he advised me to buy a new one