giúp mình chia động từ ở thì quá khứ đơn hoặc thì hiện tại hoàn thành ----- Nội dung ảnh ----- 14.- (you go) abroad this year? - No, I 15.- The shop is probably closed because they (go, just) for lunch. 16.- When I (be) at primary school I (not like) Maths. 17.- Why does Peter look so sad? - He (lose) his mobile. 18.- Mark Spitz (win) seven Olympic gold medals in 1972. 19.- Why are you crying? Because I (cut) my finger. 20.- When Mary was young, she (love) skiing.