单选题 The boss didn’t like Joan. The __(　　)___ was her laziness.

单选题 It took my family three years to pay ___(　　)__ our debts.

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

单选题 We must __(　　)___(　　)positive attitude toward life if we want to live happily.

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 Wang Ping had to pay his way ___school because came from a poor family.

单选题 The grateful girl thanked her teacher from the ___(　　)__ of her heart

单选题 Peter __(　　)___ start working when it began to rain.