I arrived at the Tianjin Train Station at 10:30 that day, by which time the express train for Beijing _____.
A.was starting B.has started C.started D.had started
_____ about the future of these wild animals, people set up conservation areas to protect them, especially the _____ species.
A.Concerned; endangered B.Concerning; endangered
C.Concerned; endangering D.Concerning; endangering
Lessons can be learned to face the future, ________ history cannot be changed.
A.though B.as C.since D.unless
The book _____ readers of all ages and establishes a literary bond between parents and children.
A.puts down B.appeals to C.comes across D.goes through
—It was really tiring for me to stand in the queue for two hours to get the G- train ticket.
—You ____. You could have got one online.
A.needn’t B.needn’t have C.didn’t need to D.didn’t need to have
The suspect was declared innocent for____of convincing evidence.
A.lack B.absence C.confusion D.unawareness
