Have you worked in a school before？（)

You look very tired. You ____ too hard these days.

A. could have worked

B. ought to have worked

C. should have worked

D. must have worked

A.where you worked in

B.which you have worked on

C.in which you worked

D.for which you have worked

You have ______ a two in the zip code.

A、left out

B、made out

C、worked out

D、figure out

A.have worked

B.work

C.be working

D.have been working

() you have worked out the hard problem, you shall have a rest first.

A.By now

B.Ever since

C.Now that

D.In that

A. must have been working

B. might be working

C. must work

D. should have worked

Where else have you worked， or have you always worked here？ ()

A. I've been doing construction work and it's been a busy

season.

B. No , I didn't come to work here yesterday.

C.Oh , no. I've only had this place since last year.I was in Clinton Hospital.

A.could get

B.could have got

C.would get

D.would have got

Had you worked harder that time, you ______ a better position.

A. could get

B. have got

C. would get

D. would have got

A、drawn on

B、entitled to

C、settled for

D、rested on