—Tom, how forgetful you are! I found you left your key in the keyhole this morning. —Oh, dear! _______.
The horrible accident _____ his carelessness of drunk driving.
So far we have done a lot to build a low-carbon economy, but it is ____ ideal (理想). We have to work still harder.
There was a _____ look on his face. He found what the expert said too difficult to understand.
According to the literary review, Laoshe ____ his characters live through their languages in his plays.
People are using more and more natural gas, wind and other forms of _____.