Examination compositions, together with most business letters and government reports, are the main situations ____ formal language is used.
| A．in which | B．on which | C．of which | D．for which |
—What ____ you to get bored with her?
—_____was her laziness and unkindness.
| A．made; It | B．caused; That | C．led; It | D．got; That |
The woman was about to open the door _______ she heard a strange sound from inside.
| A．as | B．while | C．when | D．then |
The reason_____ she gave for not being present was _____the heavy snow prevented her coming.
| A．why; because | B．why; whether | C．that; that | D．how; that |
Often he______ sit for hours doing nothing at all when he was in low spirits.
| A．should | B．would | C．could | D．might |
—What are you anxious about?
— ____
| A．How can we succeed | B．Whether we can succeed |
| C．When can we succeed | D．That we can succeed |