There (be)four students from School for the Blind in Nanjing sharing reading with the students in the US through online video on April 22,2016.
I have already asked him (two)but he hasn't given me any reply.
This machine can (translate) simple messages into 24 different languages.
I haven't seen them (recent).
Many April Fool's jokes may end up (be)not very funny.
You shouldn't be too hard on (you).