13．Many medical scientists are racing__________time to find a cure for H1N1 as soon as possible

Only after being attacked by the Japanese in Pearl Harbor ___in the Second World War thoroughly.

ober, 6 Apple’s Board announced that Apple had lost ______ wise and creative pioneer,and his spirit would forever be ______ foundation of Apple

Many new goods are on sale at the supermarket. They really _____ housewives.

Luo Jing,_____ broadcasting style lots of Chinese appreciate, died as a result of cancer.