______ the late 18th century did the British explorer James Cook cross the Antarctica Circle, ______he never saw land.
A.Until, while B.Since, and C.Not until, but D.Although, yet
5G technology will ______ 15.2 trillion yuan _______ China’s digital industry between 2020 and 2025, Science and Technology Daily reported on August 28.
A.contribute, to B.adjust, to C.leave, behind D.balance, against
Architects preferred _______ buildings with more light, which_______ with the heaviness of the Gothic cathedrals of the Middle ages.
A.to design, contrasts B.designing, contrasting
C.to design, to contrast D.designing, contrasted
The plant, ______ to Indonesia, grows well in hot, humid climates.
A.apparent B.native C.primitive D.diverse
When deeply ______ in work, he always forgets all about eating or sleeping.
A.absorbing B.trapping C.absorbed D.trapped
Leonardo da Vinci was an extraordinary genius, _______ is believed _______ “Renaissance man”.
A.who, to be B.that, to be C.which, to have been D.whom, to have been
