tend to regularly suffer from acertain symptom like headache, be sure to keep in store themedicine to take care of the issue as soon as it starts.

Susan, go and join your sister cleaning the yard.—Why ____ John is sitting there doing nothing.

Britain was mandated to _____ the former colony of German East Africa. [ ]

You have no idea how she finished the relay race withher foot ____ so much.

下列各句中，没有语病的一句是 (　　)