The officer gave an order that evervone______back before dark.

A．are going

B．went

C．go

D．must go

A．saw

B．seen

C．have seen

D．to see

A．very; that

B．too; to

C．so; that

D．that; so

A．left away

B．begun

C．set off

D．started up

A．None of them is

B．Neither of them is

C．None of them are

D．Neither of them are

A．though

B．at all

C．either

D．now

A．fairly

B．just

C．rather

D．that

A．desirable

B．favorable

C．noticeable

D．available

A．with

B．of

C．for

D．in

A．since

B．until

C．for

D．before