He tried to deal with the ever-in- creasing burden of his work, but finally____ and had to take a complete rest. [ ]

Her brother is only two years old， so he is ______young ________dress himself.

Who helped you repair your bike —________ ! I repaired it all by myself.

As there’s no non-stop flight to Athens, we willhave to fly to the city Paris andRome.

Our teacher often tells us ________ in the river. It’s dangerous.