They’ll be able to walk across the river ______. A. if the ice is thick enough5/50Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. They’ll be able to walk across the river ______.if the ice is thick enoughif the ice will be thick enoughwhen the ice will be thick enough unless the ice is thick enoughGiải thíchĐáp án A Câu điều kiện loại 1. Mệnh đề điều kiện chia thì hiện tại đơn