Dưới đây là lỗi sai và cách sửa cho từng câu:

**Câu 13:**
**Sai:** "drink sometimes coffee"
**Sửa:** "sometimes drink coffee"
**Câu hoàn chỉnh:** "My girlfriend and I sometimes drink coffee in the morning in a café near my company."

**Câu 14:**
**Sai:** "Most people seems"
**Sửa:** "Most people seem"
**Câu hoàn chỉnh:** "Most people seem to be happy with their new working conditions."

**Câu 15:**
**Sai:** "it did very nice"
**Sửa:** "it was very nice"
**Câu hoàn chỉnh:** "Uncle Jimmy came to stay with us last month and it was very nice."

**Câu sửa lại hoàn chỉnh:**
1. My girlfriend and I sometimes drink coffee in the morning in a café near my company.
2. Most people seem to be happy with their new working conditions.
3. Uncle Jimmy came to stay with us last month and it was very nice.