She ____ in Cần Thơ since she was a child.
- A. has lived(correct answer)
- B. lives
- C. is living
- D. lived
Why: It started in her childhood and is still true: has lived.
B114 questions · Intermediate · Tenses and Time
Practise for and since with the present perfect: a length of time or a starting point, How long…? questions, It's … since, and when a finished period needs the past simple.

1.She ____ in Cần Thơ since she was a child.
Why: It started in her childhood and is still true: has lived.
2.I haven't eaten phở ____ last month.
Why: Last month is a starting point. Use since.
3.How long ____ each other?
Why: How long up to now takes the present perfect, with have before the subject.
Use the present perfect for something that started in the past and is still true: for + a length of time, since + a starting point, How long…? and It's … since.