1 . Perseverance is __________ it takes to do anything well. (用适当的词填空)

2 . It is careless of me _______ (lose) my umbrella. (所给词的适当形式填空)

3 . Word came ___________ free souvenirs would be given to whoever comes first. (用适当的词填空)

4 . The question is so hard that it is __________ most students. (用适当的词填空)

5 . ___________ (absorb) in the experiment, the professor didn’t realize it was already past midnight. (所给词的适当形式填空)

6 . People experiencing scarcity make reasonable decisions __________ (base) on their conditions. (所给词的适当形式填空)

7 . __________(absorb) in writing a poem, the poet didn’t realize night was approaching. (所给词的适当形式填空)

8 . He is respected by all the people around him for his _________ (generous) and kindness. (所给词的适当形式填空)

9 . She didn’t like horse riding because she was _________ (scare) that the horse might kick her. (所给词的适当形式填空)

10 . I showed him the invitation which the mayor (市长) had sent me in _________ (respond) to my request for an interview. (所给词的适当形式填空)