I’d like to trek ______ the jungle.

Can you come to my party on September 28th—–Sure,__________.

Nearly 56 percent of Chinese believe that traffic order got even worse after tightened traffic regulations ______at the beginning of 2013

Many people are in great need of extra food.— Yes. It is a challenge to________all their needs. [ ]

I called Nina several times,but she didn’t answer. — Of course, she ____________ Londonfor a visit.