The boys are playing________the edge of the river.
All foreign visitors are requested to _____ with the regulations in this area.
These continual _____ in temperature make it impossible to decide what to wear.
The illness from which Mary is suffering has now been _____ as hepatitis (肝炎).
A completely new situation is likely to _____ when the school leaving age is raised to 16.
I must go now. _____, if you want that book I'll bring it next time.