英语老师指着“Ff”问道：What’s this? 你应答：_______.

______ have you been to Thailand since 2004?—Four times.[ ]

How are you going to the supermarket?—We are going there _____ bike.[ ]

Doctor, how are the twins going?- Don’t worry. _______of them needs_______.

Most students walk or ________ / raId / bikes to school.