When the news came ________ the war broke out, he decided to serve in the army.
| A．since |
| B．which |
| C．that |
| D．because |
— We should recycle everything we can．
— Absolutely．These may seem little things，but they’re not__________it comes to saving the
environment．
| A．since | B．when | C．while | D．as |
No ready technical data was ______________，but we managed to go without．
| A．believable | B．convenient | C．available | D．accessible |
Every solid object______reflect a sound，varying according to the size and nature of the object．
| A．must | B．shall | C．will | D．should |
Are you certain that this is _________in his speech?
| A．as Premier Wen stressed | B．how Premier Wen stressed |
| C．that Premier Wen has stressed | D．what Premier Wen has stressed |
— How do you Chinese celebrate Mid-Autumn Day?
— Well，it depends．For me，I usually sit in the yard，________the full moon with my family．
| A．appreciating | B．admiring | C．appreciated | D．to admire |