流经鲁尔区的欧洲大河是 A 莱茵河 B威悉河 C多瑙河 D易北河
Because of the financial crisis,I have no ready____ on me. Can I pay you tomorrow?
She packed______ her job, and went off to Qingdao for the Navy celebration.
You waste much time______pig flu.on the internet..
---- Is there a vaccine _____ pig influenza?, I’m anxious to know. ----- Don’t worry, there is a vaccine _____ for pigs against pig influenza
Has she had a cold like pig flu. _____? for she is absent.