2.11 The engineers spent the whole night(work) on the new device. ·回答 2.12 I'm not sure whether we can gain any profit from the(invest) ·回答 2.13 The price of petrol is much (high) now than it was this time last year. ·回答 2.14 No one can deny that we (make) tremendous progress in the past twenty years. ·回答 2.15 The research group has submitted a report,(suggest) reforms to be made 。回答 2.16 The people injured in the accident(send) to the nearest hospital for treatment last night. 。回答 2.17 The organization started a(nation) campaign against cigarette smoking in public places. 。回答 2.18 Application for this training course should be sent(direct) to the admission office. ·回答 2.19 The manager(pay) more attention to the services for the customers. ·回答 2.20 When(ask) about the advertising campaign of the new product,the manager said it was a great success. ·回答2.11 The engineers spent the whole night (work) ___________on the new device. • 回答 2.12 I’m not sure whether we can gain any profit from the (invest) ___________. • 回答 2.13 The price of petrol is much (high) ___________now than it was this time last year. • 回答 2.14 No one can deny that we (make) ______tremendous progress in the past twenty years. • 回答 2.15 The research group has submitted a report，(suggest) ______reforms to be made. • 回答 2.16 The people injured in the accident (send) _________to the nearest hospital for treatment last night. • 回答 2.17 The organization started a(nation) ___________campaign against cigarette smoking in public places. • 回答 2.18 Application for this training course should be sent(direct) ___________to the admission office. • 回答 2.19 The manager (pay) ___________more attention to the services for the customers. • 回答 2.20 When(ask) ___________about the advertising campaign of the new product，the manager said it was a great success. • 回答