MCQ
To bite one's lips
From Idioms and Phrases · English Language Competence Test
To bite one's lips
A pipe dream
It is difficult to <u><em>keep a level head</em></u> in these days of mounting prices.
He believes in the policy of <u><em>making hay while the sun shines</em></u>.
The secretary and the treasurer are <u><em>hand in glove</em></u> with each other.
It requires unparalleled courage <u><em>to set the Thames on fire</em></u>.
The old beggar <u><em>ran amuck</em></u> and began to throw stones at the passerby.
It is time that professors came down from their <u><em>ivory towers</em></u> and studied the rea…