__________in the United States, St. Louis has now become the 24th lar-考呗网题库移动版

单选题 __________in the United States, St. Louis has now become the 24th largest city.

A．The fourth biggest city it was
B．Once the fourth biggest city
C．Being the fourth biggest city
D．It was once the fourth biggest city

参考答案B

解析:

单选题 He said it was impossible for__________a mistake in a computer's calculation, so you can rely on that.

A．there being
B．there would be
C．there to be
D．there was

单选题 Contrast may make something appear more beautiful than it is when__________ alone.

A．seen
B．is seen
C．to be seen
D．having been seen

单选题 __________tomorrow, he would get there by Wednesday.

A．Would he leave
B．If he leaves
C．Was he leaving
D．Were he to leave