根据句意及括号内的汉语提示完成句子。（每空一词）

小题1: If the weather is ____________（晴朗的）, we’ll plant trees along Xihe River.

小题2: We’ll make a _____________ (决定) to have a meeting in memory of（纪念） “5.12 Earthquake” at school next month.

小题3:Thanks to the policy, the government is sending home-electric machines to farmers, they can pay much ___________ (少的) money.

小题4: My son is looking forward to ____________ (收到) letters from his pen pal in England.

小题5: The busier you are, the ______________（幸福的）you’ll feel.

小题6:I’m waiting for my friend. If she ____________ (返回), I’ll go shopping with her in Huangshang Supermarket.

二尖瓣狭窄最严重的并发症和主要死因是()

A．心律失常

B．急性肺水肿

C．脑栓塞

D．肺部感染

E．感染性心内膜炎