形状公差包括平面度公差、圆度公差和同轴度公差。（)

My secretary usually opens my post__________ it’s marked“private”.

A.unless

B.if

C.as

D.for

When you arrive tomorrow, my secretary (meet)______you at the airport.

I had ______ in my secretary; she would do the right thing.

A、dependence

B、confidence

C、knowledge

D、responsibility

A．out of my mind

B．at the back of my mind

C．on my mind

D．in the front of my mind

My neighbor ______ her own daughter as an excellent secretary!

A．acquainted

B．introduced

C．recommended

D．presented

On weekends my grandpa usually ______ a glass of wine.

A．subscribes to

B．engages in

C．hangs on

D．indulges in

听力原文：My sister usually gets up at 6:10．

A．

B．

C．

I usually take sandwiches for my lunch, but ______and then I go to a cafe

A．once

B．now

C．ever

D．before