________ he got the news, Mr. Mathews hurried out of his house, and ________ his car, drove all the way to town.
| A．When: started | B．The moment; having started |
| C．Until; starting | D．Once; to start |
I know these flowers are not natural, but the _____ ones look more beautiful and can last long.
| A．fresh | B．new | C．true | D．artificial |
Cattle’s two ____ help them to digest food and their fur to keep them warm.
A stomaches B heart C stomachs D hearts
Great attention must be paid ____ welfare, especially in the poor area.
| A．develop | B．to develop | C．to developing | D．developing |
________they visited the Science Museum，they showed great interest in everything they saw.
| A．The first time | B．For the first time | C．At first | D．At the first time |
John, get up! I’m afraid you won’t have time to ______ before going out.
| A．get to change | B．get changing | C．get change | D．get changed |