What I am concerned about is ________ they could fit in with society and how we can create more opportunities for them.
| A．which | B．what | C．whether | D．who |
The lady ________ have done something wrong, because she is looking guilty.
| A．would | B．should | C．can | D．must |
Close the door of fear behind you, and you _____ the door of hope open before you.
A. saw B. have seen C. will see D are seeing
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．where |
Do not let any failures discourage you, for you can never tell ______close you may be to success.
| A．how | B．that | C．which | D．where |
It is suggested that all these gifts be mailed immediately _________ in time for Christmas.
| A．in order to have received | B．so as to receive |
| C．so as to be received | D．so as to be receiving |