Bright reds are in a high demand in the pigment market due to ______.

(单选题)As a new graduate, he doesn’t know ______ it takes to start (单选题)—Congratulations on your girlfriend’s being offered the job. (单选题)______I could express my thanks to the traveler, he had alre (单选题)—We are worried about Tom. Why hasn’t he come back？—Don’t wo (单选题)______ to nuclear radiation, even for a short time, may infl (单选题)I was lucky to be given an opportunity ______ I could put wh (单选题)Ture happiness does not ______ the possession of money, but (单选题)I ______ for Shanghai this Saturday, so I want to knew when (单选题)In order to promote and protect human rights, all countries (单选题)Why did Sue and Behrman look at each other without speaking？