Find and correct the mistakes in the sentences. 1. You really mustn't have shouted at the customer like that! 2. Daniel can't have worked very hard. He was promoted to manager! 3. The volunteers must have spent a lot of time fixing the well in the

Perfect Modals
\( x \) Find and correct the mistakes in the sentences.
1 You really mustn't have shouted at the customer like that! \( \qquad \)
2 Daniel can't have worked very hard. He was promoted to manager! \( \qquad \)
3 The volunteers must had spent a lot of time fixing the well in the village. \( \qquad \)
4 Jeremy isn't here. He must have leave for work already. \( \qquad \)
5 You couldn't have made a coffee for the boss; she's already got one. \( \qquad \)
6 The doctor could has treated more people, but there wasn't any medicine. \( \qquad \)
7 That can't have being Rosemary you saw; she's in Australia. \( \qquad \)
B Your assistant mustn't have been more helpful; you're lucky to have her. \( \qquad \)