Every 40 minutes we will take a 20-minute break, ______ your guide will give a short talk on different aspect of the Great Wall.
______ historical evidence, they tried their best to defend their point of view.
-- I think the waiter has forgotten us. We ________here for over half an hour! -- I think you're right. He probably thinks we have already ordered.
These children are polite and never speak loudly in class.________.
The city dedicated a monument ________ those killed in battle.
Vast amounts of government help _____ the economy of the area grow rapidly.