سؤال قواعد ستيب محلول — اختيار الجملة الصحيحة (تدريب 5043)

To which sentence can we add the following clause? because he was always too busy. 1) It had been long time since Ali had visited his mother in the village. 2) Now she was ill and he knew he must go to her. 3) Arriving after the long and tiring trip, he saw his mother’s face light up and she began to feel much stronger. 4) His visit had been better than any medicine.