I will never forget the day when I was admitted into the university

I'll never forget ______ (see)the musical comedy in New York．

I′ll never forget the day ____ I became a doctor.

A.that

B.which

C.where

D.when

I can never forget the day _____ we spent together.

A. when

B. in which

C. at which

D. which

A.which/that/省略

B.when

C.where

D.on which

I can never forget ______ the famous actress during her visit to our school．

A．having been met

B．to meet

C．to have met

D．meeting

I can never forget the day ____ I got the first prize in the competition.

A.that

B.where

C.which

D.when

A.seen

B.see

C.to see

D.seeing

A.though

B.before

C.while

D.as

I shall never forget (visit) ______ the West Lake for the first time last year.

The day I shall never forget is the one ______ I joined the Party.

A．which

B．at which

C．on which

D．in which