Bill wasnt happy about the delay of the report by Jason, and .

单项选择题When youve finished with that book, dont forget to put it back on the shelf,

单项选择题The weather in London is so changeable that people always take their umbrellas with themrain.

单项选择题As you worked late yesterday, youhave come this morning.

单项选择题.Mr. Smith, I should tell you this is the fifth time you me for my twin sister.

单项选择题Scientists are convincedthe positive effect of laughterphysical and mental health.