The trade union intended to call on the workers to go on strike _______ the government’s limitation on exports

During the final exam, students are required ______ their own pens and pencils.

4 colorful clay Warriors ____ at No. 1 pit,______ in height from 1.8m to 2m, have black hair, green, white or pink faces,and black or brown eyes.

People often find themselves caught in sucha _____ as “whether…or not…”

I apologize if I__________you，but I assure you it was unintentional(无意的).