Ai giải mik vs ạ

Here are the answers with the correct tense of the verbs in brackets: 1. I **have been learning** English for 4 years. 2. I **haven't learned** English for 4 years. 3. **Have** you **been learning** English for 4 years? 4. How long **have** they **been cutting** down this tree? - They **have been cutting** it since 2007. 5. The plumber **hasn't checked** the pipes yet. 6. My sister **has watched** this film many times.