Maîtrise des temps en anglais : exercices de conjugaison

Complete the following paragraph by choosing the correct verb forms. Provide the tense for each choice. Context: An archeologist is reflecting on a dig.

'By the time the team reached the site, they (1. work) ________ for three days in the desert. Even though the heat (2. be) ________ intense, they (3. refuse) ________ to stop. By next summer, they (4. uncover) ________ the entire tomb if the funding (5. arrive) ________ on time.'