中等ENGL-COND-006
Choose the correct sentence using 'unless' in a first conditional.
A. Unless it rains, we will go to the beach.✓ 答案
B. Unless it will rain, we will go to the beach.
C. Unless it rained, we would go to the beach.
D. Unless it had rained, we would have gone to the beach.
解說
'Unless' means 'if not'. First conditional: 'unless + present simple, will + base verb'. Option B uses 'will' after unless (incorrect), C is second, D is third.