按要求做题。 1. Neither of my parents has gone abroad. (改为同义句) My mother has ____________ gone abroad. ____________ has my father. 2. The population of China is 1.3 billion . (就画线部分提问) ___________ the population of China? 3. He has waited since he came here . (就画线部分提问) ___________  ___________  ___________ he waited? 4. It's three weeks since he left home. (改为同义句) Three weeks ___________  ___________ since he left home. 5. He didn't go to the museum. I didn't go there, either. (合并为一句) ___________ he ___________ I ___________ to the museum.