________ difficult for us ________ take good photos.
A. It's；to B. It's；for C. It；to D. It was；for
I watched my dog ________ with a white cat.
A. played B. to play C. plays D. play
There were ________ people in the park，but it was ________ fun.
A. so much；too many B. too much；so much
C. too many；so much D. too many；so many
I ________ a student last year but now I ________ a teacher.
A. am；am B. was；am C. am；was D. was；was
My brother taught me how ________ a model plane yesterday.
A. make B. making C. made D. to make
Sam thinks history is an ________ subject. He is ________ in it.
A. interesting；interesting B. interested；interesting
C. interesting；interested D. interested；interested
