______ in real estate is no longer as safe as it used to be five yearsago.
A. To be invested
Being invested
C. Invest
D. Investing
《礼记》的第一篇是()。
A. 《檀弓》
B. 《曲记》
C. 《王制》
D. 《少仪》
When ______ about the future of their company, some of the smallbusiness owners feel positive.
A. asked
B. having asked
C. asking
D. to ask
《仪礼》一共有()篇。
A. 18
B. 21
C. 17
D. 16