Students should by all means______ their studies though there are a lot of entertainments inviting them.
| A．devote to | B．fix on | C．concentrate on | D．pay their attention |
After living with his grandparents in the countryside for ten years, the boy returned to the big city ____ his parents worked.
| A．which | B．where | C．that | D．when |
He was impolite to the Custom Officer, ____, of course, made things even worse.
| A．who | B．that | C．what | D．which |
Soon they got to the bank,____stood a big pine tree.
| A．In front of which | B．There | C．Where | D．It |
One of the men held the view ____ the book said was right.
| A．what that | B．what | C．that | D．that what |
The young man went into the cinema and after ____ seemed half an hour he came out.
| A．that | B．it | C．what | D．which |