Some of the students have already learned enough English to _____ a conversation with a native English speaker.

Nowadays people are wasting too much energy, so we should lead a low-carbon life., we’ll suffer a lot in the future.

mily _____ fans of Jay Chow, whose songs all sound familiar to them.

Rising sea levels and drought caused byglobal warming could anincreasing number of natural disasters.

下列各句中,表达得体的一句是