Mark 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 ______.

5/50

Mark 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 enough

if the ice will be thick enough

when the ice will be thick enough

unless the ice is thick enough

Giải thích

Đáp án A

Câu điều kiện loại 1. Mệnh đề điều kiện chia thì hiện tại đơn