【单选题】He was walking along the sands ______ he saw a big footprint in the sand.
【单选题】Only after he realized the significance of mastering two languages __________ English carefully.
A.
did he set about learning
B.
did he set out learning
C.
had he set about learning
D.
had he set out learning
【单选题】He often watches TV _____ a while _____ dinner. [ ]
【单选题】党的十九大进一步明确了决胜全面建成小康社会的战略安排。从现在到 年是全面建成小康社会决胜期。
【单选题】Cameron stopped for a while during the trip __________.
A.
so he could save the power and dive deeper
B.
because he wanted to collect rocks and critters
C.
to meditate on the meaning of life
D.
just to feel the amazing moment
【单选题】When the fever eventually____, he is likely to feel tired and weak for a while.
【单选题】After school he didn't go home. ______, he went to the playground.