1. We had better _________________（天天锻炼身体）.
2. _______________（为了不影响他们），we left quietly.
3. _____________（我答复她）that I would accept her invitation.
4. According to the newly-announced policy，we should ________________（努力搞活国有大中型企业）.
5. It has become an utmost urgency that ________________（必须清除政府中的贪污腐化现象）.
答案：
1.exercise everyday
2.In order not to affect them
3.I answered her
4.try our best to make large and medium-sized state-owned enterprises alive.
5.we must clear the phenomenon of corruption in the government.