问题
选择题
It was only after I came across that matter_______ how important it was to master a foreign language.
A．did I realize
B．had I realized
C．that I realized
D．when I realized
答案
答案：C
考查it was…that…的强调句型。去掉it was…that后，剩下I realized how important it was to master a foreign language only after I came across that matter，是一个完整句子，所以是强调句型。选C。