🧵 接続詞 ・ ヒナ
TOEIC Part5文法問題 ヒナ: Q34（接続詞）
The technician will call you ___ he has diagnosed the problem.
The technician will call you ___ he has diagnosed the problem.
答えを見る
正解: A) once
What follows is the clause 'he has diagnosed the problem'. The conjunction 'once' (meaning 'as soon as') fits the meaning. 'During' and 'in spite of' are prepositions and can't take a clause. 'Whether' means 'whether or not' and doesn't match the meaning of when contact will happen.