—You were not listening；what troubled you?—I my coming math exam．
#102663
A
am thinking about
B
was thinking about
C
had thought about
D
will think about
推荐题目
Over the past l00 years，sea level steadily as a result of global warming．
#103377
A
had increased
B
has been increasing
C
increased
D
is increasing
Large quantities of water , as well as some other timely help including a medical team, _____ since the serious drought hit Yunnan Province.
#100131
A
has offered
B
had been offered
C
have been offered
D
is offered
Alice, together with two boys, for having broken the rule.
#102143
A
was punished
B
punished
C
were punished
D
being punished
When he was alive, the old scientist used to say that knowledge ______ from practice and he gained his experience by doing a lot of practical work.
#104096
A
was coming
B
had come
C
comes
D
would come