With the development of science, more new technology         to the field of IT.
#100766
A
has introduced
B
is being introduced
C
is introduced
D
was introduced
推荐题目
Dr. Smith, together with his wife and daughters, __ visit Beijing this summer.
#101971
A
is going to
B
are going to
C
was going to
D
were going to
--We ________ that you would fix the TV set for us.--I’m sorry, but I was too busy, so I ________.
#102801
A
had expected; had fixed it
B
expected; fixed it
C
had expected; had it fixed
D
expect; fix it