He (be) happier if he (stay) at home 2. She (pass) the exam if she(study) harder. 3. They(be) late if they (not/take) a taxi. 4. I (cal) you if I (not/forget) my phone 5. We (come) if we (be) invited 6. She (not/meet) him if she (not/come) to London 7. We (not/ get) married if we (not/go) to the same university.