The survey shows that ______ we are enjoying less and less good sleep, rates of heart diseases have risen rapidly．
| A．while | B．although | C．if only | D．as though |
_________ is known to all，good friends _________ happiness and value to life.
| A．It； add | B．As； add | C．It； add up | D．As； add to |
There at the door stood a girl about the same height__________.
| A．as me | B．as mine | C．with mine | D．with me |
________, he does get annoyed with her sometimes.
| A．Although much he like her | B．Much although he likes her |
| C．As he likes her much | D．Much as he likes her |
There was an old man wandering about the corner _____ waiting for someone.
| A．even though | B．even if | C．as if | D．in case |
John couldn’t finish his words ______ something had struck his throat.
| A．though | B．as though | C．when | D．since |