1. 看!他们在操场上正玩得开心呢! Look! They ______ ______ ______ ______ ______ on the playground. 2. 将来老师们不会用粉笔在黑板上写字了。 Teachers ______ write on the blackboard with chalk ______ ______ ______ . 3. 你正在为期中考试做好准备吗? Are you ______ ______ ______ the mid- term exam? 4. 长江比泰晤士河宽。 The Changjiang River is ______ ______ the River Thames. 5. 香港在中国的南方。 Hong Kong is ______ ______ ______ ______ China.