The new research center will be set up was a wasteland 20 years ago.
A．in what B．where C．in which D．there
These toys are not suitable for children four years old, who are too young.
A．outside B．beyond C．under D．within
Cathy was a teacher from Newcastle, is almost as far north as you can go.
A．who B．which C．that D．where
Atlanta, as well as many other big cities, once again becoming one of the commercial and cultural centers of the USA right now.
A．is B．are C．has been D．have been
in diving suits, they walked into a magic world lighted by lamps on board.
A．Dressing B．Wearing C．Worn D．Dressed
The headmaster didn’t make clear when and where the sports meeting would be held.
A．this B．that C．it D．one
