【推荐1】In fact, a theory is an abstract, ________ (symbol) representation of what is conceived to be reality. （所给词的适当形式填空）

【推荐2】A lot of Latin-American officials are stressing the________(symbol) importance of the trip. (所给词的适当形式填空)

【推荐3】The president’s visit is loaded with________(symbol) significance. （所给词的适当形式填空）

【推荐1】What made him feel________ ( satisfy) was that his students were able to read, speak and write in English. (所给词的适当形式填空)

【推荐2】Their goal was extraordinarily ________(ambition). (所给词的适当形式填空)

【推荐3】When I was walking on the street, I saw two travelers were reading a map, looking ________ (puzzle). (所给词的适当形式填空)

【推荐1】The general commanded that the soldiers should make an attack________ the enemy. （用适当的词填空）

【推荐2】After smoking, Anderson opened the window to let ________ the smoke. (用适当的词填空)

【推荐3】Modern methods ________ tracking polar bear populations have been employed only since the mid-1980s, and are expensive to perform consistently over a large area. （用适当的词填空）