3. When I was young, I took my son out for a walk everyafternoon. I used to…......………………… 4. We didn’t go on holiday because we didn’t have enough money.  We didn’t have ………. 6. He is too young to go to school. He is not………………………………. 7. They bought me the car last week. The car…………………… 8. He’d rather play soccer than tennis. He prefers………………………… 9. The water is so dirty that he can’t bathe his eyes. The water is not………………… 10. I gave up smoking ten years ago. I used……………………………

<div class="content-answer-1 enable-event-click" style="overflow-x:auto;text-justify:inter-word;text-align:justify"><p>`3`. I used to take my son out for a walk every afternoon when I was young.</p><br /><p>`-&gt;` used to + Vinf: đã từng làm việc gì trong quá khứ nhưng bây giờ không còn</p><br /><p>`4`. We didn't have enough money so we didn't go on holiday.</p><br /><p>`-&gt;` so + S + V: vì vậy `-&gt;` chỉ kết quả</p><br /><p>`6`. He is not old enough to go to school.</p><br /><p>`-&gt;` S + be + (not) + adj + enough + to V</p><br /><p>`7`. The car was bought for me last week.</p><br /><p>`-&gt;` Câu bị động quá khứ đơn: S + was/were + Vpp</p><br /><p>`8`. He prefers playing soccer to (playing) tennis.</p><br /><p>`-&gt;` prefer + N/Ving + to + N/Ving: thích gì hơn</p><br /><p>`9`. The water is not clean enough for him to bathe his eyes.</p><br /><p>`-&gt;` Cấu trúc enough: S + be + (not) + adj + enough + for SO + to V</p><br /><p>`10`. I used to smoke ten years ago.</p><br /><p>`-&gt;` used to + Vinf: đã từng làm việc gì trong quá khứ nhưng bây giờ không còn</p><br /><p></p></div><div class="pt12"><div></div></div>