Mong mọi người giúp
----- Nội dung dịch tự động từ ảnh -----
VI.Complete the following sentences.
1.My mother closed the door carefully and then she went to work.
→ After........
2. First the boys put out the fire and then they crept into the tent.
Before.....
3. We have never seen this film before. →This is the first
4. We began to do the research two days ago. → We have...
VII.Complete the following sentences with appropriate prepositions.