his FEElings As hE rEAD thE lEttEr wErE hArDly to BE DEFinED.
A．他看信时的感情早已限定。
B．他看信时的心情不可名状。
C．在他看信时他的感情几乎不能确定。
D．在他看信时他的感情几乎可以被确定。