单选题 The boss didn't like Joan. The __________ was her laziness.

单选题 His new tie __________ my attention when he came in.

单选题 Physically, boys tend to have an advantage __________ girls.

单选题 Peter __________ start working when it began to rain.

单选题 The grateful girl thanked her teacher from the __________ of her heart.

单选题 As soon as he came to his office, he __________ himself into work.

单选题 It took my family three years to pay __________ our debts.

单选题 Wang Ping had to pay his way __________ school because he came from a poor family.

单选题 We must __________ a positive attitude toward life if we want to live happily.