__________ the reason , research shows that laughter is good for your health.

I invited five people to my party. Out of five people, only Tom and Jack can come. ______ people can’ t come.

We are seeking a prime minister, _____ who will devote himself to the interest of the country.

The real test of ______ English is whether they can speak, read, write and orally understand good standard English.

―Did you hear the news this morning?  ―Oh, yes, ________ was announced on the radio has caused great excitement among pupils.