单项选择题

The mail was delayed for two days because of the snow-storm.

A．held in
B．held up
C．held down
D．held off

相关考题

I could recognize the old car at a glance.A．squareB．fea...

单项选择题I could recognize the old car at a glance.

All living organisms, regardless of their unique identi...

单项选择题All living organisms, regardless of their unique identity, have certain biological, chemical, and physical characteristics in common.

It is seldom acceptable to abbreviate words in formal w...

单项选择题It is seldom acceptable to abbreviate words in formal writing.