They thought __________ important to look right and left when ________ the road.
-----I called you yesterday evening, but you were not in.-----Sorry, I _____ in the shop with my mother.
-----Look at the elephants. Their ears _____ open fans. -----Oh, that’s right.
-----Can you see the little monkey _____ the tree? -----Yes, I can. Very lovely!
-----Do you know _____ man standing under the tree?-----Yes, he is _____ popular singer in China.
-----Is this _____ key, Jim? -----No, it isn’t. It’s _____.