题目

—What are you anxious about? —_______. A . How can we succeed B . Whether we can succeed C . When can we succeed D . That we can succeed 答案：B在横线上写出适当的介词，将句子补充完整。1. Lily and her brother are cooking dinner ______ their family.2. Some ducks are hiding ______ the tree.3. Come _____ my house, please.4. People are rowing their boats _______ the river.5. _____ your help, I get good grades.