下列各句中，没有语病的一句是

What a woman! I just wonder how she managed to keep smiling after all that she had ________.

While reading, you’d better make a mark ___ you have any questions.

_______ be in a rough life time, whether he is “Bai Fumei” or “Gao Fushuai.”

is one issue that stands out above all the rest, one every student is concerned about, _______ which class he may be from.