基礎ENGL-COND-002
Choose the correct first conditional sentence for a real possibility.
A. If it will rain tomorrow, we cancel the picnic.
B. If it rains tomorrow, we will cancel the picnic.✓ 答案
C. If it rained tomorrow, we would cancel the picnic.
D. If it had rained tomorrow, we would have cancelled the picnic.
解說
First conditional: 'if + present simple, will + base verb' for real future possibilities. Option A uses 'will' in the if-clause (incorrect), C is second conditional, D is third.