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
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—Excuse me, Madam．Taking photos is forbidden here out of security．—I’m really sorry, I _______ of that．
#102762
A
am not informed
B
hasn’t been informed
C
hadn’t been informed
D
wasn’t informed
—Jane, have you finished your paper?—No, I ________ my sister with her drawing all the morning.
#101264
A
help
B
helped
C
was helping
D
have been helping
— Remember the first time we met, Jim?— Of course I do. You _______ in the library.
#104229
A
were reading
B
had read
C
have read
D
read
Since then I a member of the family and never from them.
#105007
A
have be come; will I separate
B
have be come; I will separate
C
have been; will be separated
D
have been; I was separated