Boys and girls, we will have a class trip to Taixing Park next week.—Great! It must be ______. I simply can’t wait _____ it.
Do you know the person with __________ he always chatted online?—Yes, one of his QQ friends.
Bob is good at all the subjects at school,science.
The question came up at the meeting _________ we had enough money for our research.
Han Mei often draws pictures ________ the blackboard. [ ]