What will people die of in 100 years? If you think that is a simple question, you ______ attention to the revolution taking place in biotechnology．
#101602
A
have not been paying
B
had not been paying
C
were not paying
D
will not be paying
推荐题目
David has got everything ready, _________ it well.
#103138
A
determined to do
B
to be determined to doing
C
determining doing
D
to determine to do
According to a report, cigarette smoking____ in all indoor public places in China already.
#102291
A
will ban
B
has banned
C
will be banned
D
has been banned
Tony ________ for the company as an engineer for two decades. Now he teaches mechanics in Peking University.
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A
has worked
B
worked
C
is working
D
had worked
A lot of people often forget that oral exams ________ to test our communicative ability.
#99578
A
design
B
are designed
C
are designing
D
are being designed