________ an increasing international exchange of educational films.

[　　]

I remember ________ to their party, but I ________ the invitation in the office.

[　　]

A．to be invited; have forgotten

B．to invite; forget

C．being invited; have left

D．inviting; am leaving

Today's libraries differ greatly from ________.

[　　]

Only when you ________ English every day _______ the language well.

[　　]

A．will keep on practising; you can learn

B．keep on practising; can you learn

C．keep practising; will you tell

D．stick to practising; you will be able to improve

________ is Mr Johnson like? He is a very nice person, and is ________ of the two engineers.

[　　]

pleasure

[　　]

sugar

[　　]

popular

[　　]

The truth is ________.

[　　]

This was just ________.

[　　]