Answer — Exercise 4
Modal verbs for speculation·Focus 4 (2nd edition) - Workbook
Câu hỏi
Think of alternatives for the underlined verb structures. Use can't, could, may, might and must and an infinitive or perfect infinitive. Use each modal verb once.
Câu trả lời
- can’t / couldn’t have approached
- must be
- may / might / could have been
- may / might / could continue