All of the flowers now raised here have developed from those _____ in the forest.
| A．once they grew | B．they grew once |
| C．that once grew | D．once grew |
Although the country has had political independence for over a century,it needs the support of its neighbors.
| A．naturally | B．economically | C．especially | D．luckily |
If your race car isn’t insured, you maylosing everything when it hits something solid．
| A．delay | B．deny | C．avoid | D．risk |
AIDS control and prevention is ato China as well as the whole world．
| A．surprise | B．challenge | C．reaction | D．threat |
tomorrow, our ship will set sail for Macao.
| A．However the weather is like | B．However is the weather like |
| C．Whatever is the weather like | D．Whatever the weather is like |
She wants her paintingsin the gallery, but we don t think they would be very popular.
| A．display | B．to display | C．displaying | D．displayed |