Science is _____ difficult for some students ____ learn, so many of them don’t like it.
The man can write with ________ hand and draw with ________ at the same time.
Who can ________ the blackboard?Next I must write some English words on it.
Jane is playing ________ guitar and singing songs.
Do you want ________ the exciting movie A World Without Thieves(《天下无贼》) with us this evening?
Here are ________ my pictures;I like them very much.