With the development of science,more new technology to the fields of IT.
#104546
A
has introduced
B
is being introduced
C
is introduced
D
was introduced
推荐题目
— What were you up to when your parents came in? — I＿＿for a while and＿＿some reading.
#104407
A
was playing； was going to do
B
played； did
C
had played； was going to do
D
had played； did
The London 2012 Olympic Games marks the third time that London ________ the right to host the modern Olympics.
#99727
A
had had
B
has
C
had
D
has had
—— Is Tom still smoking ? —— No.By next Saturday he ＿＿＿＿＿＿＿ for a whole month without smoking a single cigarette.
#104650
A
will go
B
will have gone
C
will have been
D
has been going
A special dinner there might include Chinese pork dish, British roast beef and French-style vegetables. Boiled rice ____ just about everything.
#104300
A
is served with
B
will serve
C
serves with
D
is served
Hanoi declared that it ______by fast-spreading H1V1, which ____other countries nearby.
#103504
A
was being struck ,had hit
B
has been struck,had hit
C
has been struck ,has hit
D
will be struck , has hit