2. At 7.30 this morning my mother is watching a video

1.I am cooking at the moment 
=> Now, I am cooking
2.My mother is watching the video at 7:30 this morning 
=> This morning, my mother watching the video at 7:30
3.Linda is doing exercise now 
=> Now, Linda is doing exercise
4.Hoang and Nha are going to school now
=> Hoang and Nha are going to shool at the moment
5.we are learning English in our class 
=>in our class, we are learning English
6.Hi is playing football now 
=> Hi is playing football at the moment
7.Lan writing a dictation at present
=> Lan writing a dictation now
8.Minh is speaking English with my teaches now
=> my teacher is speaking English with Minh