Пожалуйста When the dog ................ him, he
...................... his bike.

a) was biting - fell off b) bit - was falling off

c) bit - fell off

I didn't notice that you
.................................... .

a) had come b) came c) have been coming

I can't stand it anymore. I
.................................. the furniture since breakfast.

a) am polishing b) have been polishing

c) have polished

...................................................
the dishes yet?

a) Has he washed b) Has he been washing

c) Did he wash