—______ that he managed to get the book?
— Oh, his sister helped him.
| A．Where was it | B．What was it | C．How was it | D．Why was it |
Choosing the right dictionary depends on __________ you want to use it for.
| A．what | B．why |
| C．how | D．whether |
Having checked the doors were closed, and ___ all the lights were off, the boy opened the door to his bedroom.
| A．why | B．that |
| C．when | D．ours |
It is none of your business __________ other people think about you. Believe yourself.
| A．how | B．what |
| C．which | D．when |
You can only be sure of __________ you have at present; you cannot be sure of something __________ you might get in the future.
| A．that; what | B．what; / |
| C．which; that | D．/; that |
A warm thought suddenly came to me __________ I might use the pocket money to buy some flowers for my mother’s birthday.
| A．if | B．when |
| C．that | D．which |