I. Verbs.
1.  Trung’s father ( teach) ….him how ( ride )   a bike when he (be)    ten years old.
2. How your brother (go )… to work every day ? –He usually ( drive ).
3. We (go  )… to HaLong this weekend.
4. You ( used ) …to play so much  when you (live) …..in the country ? 
5. The house ( build ) …..by my  grandfather 50 years ago.
6. Yesterday , Hoang ( spend ) ….two hours ( repair) …...his computer set. 
7. The coffee is too hot for me ( drink )………...
8. When she ( do) ….the gardening with her family , the phone rang.
9. I (not- write ) ………..a letter to my sister for a long time.
10.  ( have.) ………..a holiday abroad is very wonderful.

tính số nguyên tử Al có trong thanh nhôm là 50 g

Phân tích bức tranh "Nghỉ chân bên đồi"(ko chép mạng nha)Giúp mik vs chiều mik phải nộp rùi