bank soal : present continous and past continous tense

Please see the following sentences. Please mark C if it is CORRECT, and I if it is INCORRECT.

1. I am washing my clothes when you come yesterday. <.....>
2. My parents are having business trip now. <.....>
3. My family and I are having trip to Surabaya. <.....>
4. My sisters were studying when my parents came. <.....>
5. I am playing guitar just now. <.....>

Fadjar Setyanto