1.TheLisarehavingapicnicinthepark.(划线部分提问)2.IsSallyswimminginthesea?(否定句)
3.Don't_____(make)anoise.Mylittlebrother_______(sleep).
4.Heoften_____(go)theswimmingpoolwithwithhisfriend.
第一题的划线部分在havingapicnic