Cover of the textbook Focus 4 - Student's Book

Exercise 4 — Focus 4 - Student's Book

0.4 - Visitors from space — Focus 4 - Student's Book by Kay Sue, Jones Vaughan, Brayshaw Daniel and Beata Trapnell from Pearson Education

Question

Replace the underlined verb structures with alternatives using can’t, could, may, might and must and an infinitive or perfect infinitive. Use each modal verb once only.

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