Complete the passage with the modal verbs in the box can Can't must Must not should Should not Ought to Ought not to Sicentists sau lifi started in the ocean. However, humans aren't natural swimmers. Uwe ......1.......swim as babies, but we forget and then we ....2..... learn ... .. help. They ........8....... give us the opportunity to learn to swim. (Các bn giúp mk nha! Đang cần siêu gấp luôn!)
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19 tháng 3, 2017
trong Tiếng Anh lớp 7