Complete the sentences. use simple present or present progressive. maria (want) to improve her english. therefore, she (do) a language course in london at the moment. she (stay) with a host family and (must) take the tube to get to her language school. it (be) only a five-minute walk to the nearest tube station. the tube (leave) at half past eight. the first lesson (begin) at 9 o'clock. in the afternoons, the school (offer) sightseeing tours in and around london. tomorrow, the students of the language school (go) to windsor.