Milk quickly turns sour ______ it"s in a fridge.[ ]A. until B. since C. as D

题型：山东省中考真题难度：来源：

Milk quickly turns sour ______ it"s in a fridge.

[ ]

A. until
B. since
C. as
D. unless

答案

举一反三

Yesterday evening I was playing the piano _______ the doorbell rang.

[ ]

A. when
B. before
C. while
D. after

题型：山东省中考真题难度：| 查看答案

More and more kids become unhappy ______ they have too many activities to do.

[ ]

A. but
B. or
C. because
D. so

题型：山东省中考真题难度：| 查看答案

—What a surprise it is that you"ve hiked on Mount Tai!
—I didn"t believe I could do it _____ I got to the top.

[ ]

A. unless
B. after
C. until
D. as

题型：山东省中考真题难度：| 查看答案

Li Ming failed in the exam again _________ he tried really hard.

[ ]

A. if
B. so
C. though
D. since

题型：山东省中考真题难度：| 查看答案

People in China were deeply hurt _____ seeing Chinese torchbearer (火炬手) JinJing attacked (被袭击) in her
wheelchair in Paris.

[ ]

A. when
B. while
C. before
D. since

题型：山东省中考真题难度：| 查看答案