2. One pair of green monkey kidneys can produce many more vaccine............... than cells from other animals because they ................... several times without mutating.

3. Acknowledging the sociocultural ........................ and the already developed ................. of children in their own language helps boost their learning of the new language.

4. Mice visitors usually have limited leisure time to spend money or use .................... and services in the areas they visit. They cannot ................... the huge amount of money spent by leisure travelers.

5. An allusion is a figure of speech that makes a reference to a place, person, or something that happened. This can be real or ................... and may refer to anything, including paintings, opera, folk lore, mythical ..................., or religious manuscripts.

6. The specialists say that consumption of food and drink ..................... acid can, in any case, ................... the erosion of tooth enamel.

7. This year is shaping up to be another good one for the region, with GDP .................. to grow by 5.25%, partly due to a .................... in the region's exports.

8. Contrary to popular belief, the ............... of the eco-car program as the country's second product .................... will not cannibalize the one-ton pickup truck market.

9. In their ..................... of Indochina, the French viewed the Mekhong as the economic ................ to Asia.

10. When a person is personally ................... in some aspects of the topic being discussed, they are more likely to present an emotion-filled ............... than they would if they are only presenting something they have read.