Question

The high-tech gadgets are now a part and parcel of our life.Some of them proved to be very useful,happy and comfortable.They _____ opened up new vistas of knowledge ______ provided rich sources ______ entertainment and learning. The internet is perhaps______ best discovery of our age.

Answer 1

1. are
2. which provides
3. of
4. the

Answer 2

Have

which

of

the

These are correct