用适当的介词填空,如不需填则画“/” 。 1. Will you have a chemistry lesson _______ next term? 2. What do you usually do _______- weekends? 3. I have too much homework _______this weekend. 4. We are leaving ________ the 15th. 5. Christmas Day is _______ December.
【简答题】根据括号内的要求改写句子。 1. I don't know what I shall do. (同义句) I don't know ___________ ____________ ___________. 2. Cycling is exciting. Skiing is exciting too. (合并成一句) Cycling is ___________ ___________ _____...