Question

1. The last time Phong visited his grandparents was a month ago.

Phong has 

2. His mother often buys him new clothes before Tet.

He 

3. Global warming has caused many natural disasters.

Many natural disasters 

Answer 1

1. Phong has not visited his grandparents for a month.

2. He is often bought new clothes by his mother before Tet.

3. Many natural disasters have been caused by global warming.

Answer 2

1. The last time Phong visited his grandparents was a month ago.

Phong has not visited his grandparents for a month.

2. His mother often buys him new clothes before Tet.

He is often bought new clothes by his mother before Tet.

3. Global warming has caused many natural disasters.

Many natural disasters have been caused by global warming.