[跟踪训练]
在空格处填入适当的词(1个单词)或所给词的正确形式
1．The study suggests that governments have a responsibility to encourage people to be more (physical) active.
2．Unless they (wound)，water buffaloes(水牛) are probably the gentlest farm animals in the world.
3．We must send her to hospital at once，or she’s going to (blood) to death.
4． (symptom) are a slight fever，headache and loss of appetite.
5．It’s hard to take them (serious) in their pretty grey uniforms.
6．“How will they get that problem？”he wondered.
7．The doctors decided to operate the patient at once.
8．Her health broke under the pressure of work.
