【题目】Shall we go to the cinema _______ car or _______ foot? ( )

【题目】—What are you doing? ( )

【题目】My cousin asks _______ a penfriend _______ the Internet. ( )

【题目】Look! There’s a thief _______ the back _______ the bus. ( )

【题目】It means we shouldn’t walk _______ the grass. ( )

【题目】Excuse me. Is this bus _______ Nanjing? ( )

【题目】The baby’s parents are working. Would you like to look _______ it? ( )

【题目】—How do you spend your weekends? ( )

【题目】—What _______ swimming in the pool? ( )

【题目】I’m going to stay in Beijing _______ two weeks. ( )