35.The teacher explained the instructions so that students could do the experiment accurately.
A.in reality B.in vain C.in detail D.at random
34.The new evidence has the story of the first witness.
A.confirmed B.informed C.considered D.confused
33.Every country concerns food safety systems. But there are key areas China can focus on improvements.
A.which B.where C.why D.when
32.The car burns more fuel, but all things into account, it is still a good car.
A.taking B.having taken C.taken D.to take
31.Confidence and efforts are the international community needs now to counter the on-going financial crisis.
A.why B.that C.what D.when