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alone B. lonely。 He put up some signs _____ _____ old bikes. 2. 他想出的主意效果非常好。 We need _____ _____ _____ _____ a plan. 7. 你可以在食品庫分發(fā)食物 . You could _____ _____ _____ at a food bank. 8. 我愿意讓生病的孩子快樂起來。 alone 8. Jack, you should learn ___ after yourself. A. looking B. look C. to look D. looks 9. They finished their homework ___ the same time. A. of B. in C. with D. at 10. I found it hard ___ out the problem. A. work B. to work C. working D. worked Answers Ⅰ . 1. give