----- Nội dung ảnh ----- X. Put the verbs in brackets to complete the sentences in the past continuous tense. 1. The scientists (1. discover) a new species in the rainforest. 2. She (2. not/finish) reading the entire book, even though she started it weeks ago. 3. They (3. work) on this project for several months, and it's still not complete. 4. I (4. never/try) such an unusual dish before. 5. The students (5. already/submit) their essays to the teacher.
