When he was young, his parents died and he had to ­­­­­_____ himself.

One of the few things you __ _ say about English people with certainty is that they talk a lot about the weather.

_______cloning human embryos is not legal in many countries, some scientists are already pushing ahead with research in order to produce a cloned human baby

Did you watch the football match last night?–No, there was something wrong with my TV and it couldn’t ________ any programs.

下列各句中，没有语病的一句是（  ）