______has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.
The Browns held _____ they called"family day"once each year.
The stone on the river bank rolled under her feet; she was _____into the river,and she called out for help.
-What do you do yesterday afternoon? -I went to the bookstore,___ some books and visited my uncle.
Exercise is ______ as any other to lose unwanted weight.
-Do you think we can get there on time? -Yes,_______ the truck doesn’t break down.