He always has a lot of _______ ideas in his mind , and sometimes we do not even know what he is thinding about.
A
暂无解析
Weare_______attherapidprogressMarkhasmadeinthissemester.
Theengineersinthislabspentseveralweeks_______theirplansforthenewbicycle.
Freemedicalserviceis_______tonearlyallthecollegestudentsinChina.