It is nice to go for a walk __ a summer evening. A.on B.during C.in D.at
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The medicine had no __ on him. A.affection B.effect C.affect D.effective
What is the writer's attitude toward the experiment? He is __. A.interested B.denying C.objective D.indifferent
Not until quite recently __ he gave up his plan to go abroad. A.I knew B.I had known C.did I know D.I did know
When we catch cold, how does our body work hard? A.Our runny nose stops our breath. B.Our