Question

Present Continuous.
1. Look, father (to cut) the grass.
2.They (not to draw) anything at this moment.
3.She (to hide) from her brother now.
4. ....it...now?(to rain)

Past Continuous.
1.The students (to sit) at the lecture yesterday at 5.
2.He (to write) a letter when i entered the class.
3. What....you....(to do) yesterday at 8?
4.I (to speak) with Bob when you met me yesterday.

Present Perfect.
1.I know who (to break) the window.
2. ....you ever..... to Paris (to be)
3.My brother (to finish) already his studies.
4.I (to do) never it.
Эти предложения надо поставить в разные времена (надписаны над предложениями)

Answer 1

Present Continuous
1)is cutting
2)aren"t drawing
3)is hiding
4)Is it raining?
Past Continuous
1)were sitting
2)was writing
3)were you doing
4)was speaking
Present Perfect 
1)has broken
2)Have ......ever
3)has finished
4)have done