Betty is _______careful as I, but I’m _____ than you.

What’s the low-carbon(低碳的) lifestyle like—Save energy, and produce carbon.

Mark never considers himself as ________ failure. On the contrary, he thinks he is on the road to _______ success.

ke to have visitedthe Palace Museum last week, but something unexpected _______ to my father

y, it’s raining outside. Shall I give you aride— Thanks. ______.