(2020 原创) I don't know ________ time it is now? Maybe it is nearly five o'clock.
A.why B.what C.when D.how
(2019 保定莲池区一模)The game is so ________. No one wants to play it again.
A.boring B.amazing C.relaxing D.surprising
(2019 沧州一模)Beijing Opera came into being after 1790. It has a ________ of over 220 years.
A.culture B.meaning C.science D.history
(2019 淮安改编)—What do you think of working as a doctor?
—It's a good job to help people keep ________.
A.busy B.strict C.healthy D.calm
Each of us _____ a life goal, which will guide us to a bright future.
A.has B.have C.will have D.had
创新题Plants take in carbon dioxide ________ then turn it into oxygen in the air.
A.but B.although C.unless D.and
