Question

________, the Internet was only used by the government. But now it’s widely used in every field.

A．As usual

B．At first

C．After all

D．So far

Answer 1

B

A. As usual 通常  B. At first 起初  C. After all 毕竟   D. So far到目前为止，从But now it’s widely used in every field.（但是现在被广泛用在每一个领域）可知，前面应该选起初，因此选B。