(Viên chức Mầm non) bài tập tiếng Anh theo chủ đề có đáp án - Test 1

The reason _______ he was absent from school is that he had an accident.

53/60

The reason _______ he was absent from school is that he had an accident.

why

in which

that

which

Giải thích

Đáp án đúng là a