(Viên chức Mầm non) 5000+ câu trắc nghiệm Ngoại ngữ có đáp án - Test 1

I had to wait six weeks before the parcel __________.

31/60

I had to wait six weeks before the parcel __________.

arrived

had arrived

would arrive

has arrived

Giải thích

Đáp án đúng là a