24. They don't want to buy a new car now because they haven't had enough money yet.
25. Have you ever spoken to a foreigner before?
26. I don't know when the train leaves.
27.. Rose often walks to school but today she is riding her new bike at present.
28. How much time do you often spend on self-studying?
29. Who is Jane talking to over there?
30. I haven't found my car ket yet. I will call my sister to ask her about it.
