“On no account _____ to feed the animals,” the warning can be seen on the signboard on front of every cage (笼子).

A．allow visitors

B．are visitors allowed

C．visitors are allowed

D．are allowed visitors

雇主责任保险由______支付保险费。

A．雇主
B．雇员
C．政府
D．雇主和雇员共担