A.knowledgeably
B.knowledgeable
C.knowledge
D.know

A.light-hearted
B.big-hearted
C.warm-hearted
D.whole-hearted

A.As soon as it stops raining
B.After it had stopped raining
C.When it stopped rainingD. Once it stopped raining
D.

A.mood
B.luck
C.fortune
D.merit

A.Was built
B.Building
C.To have built
D.Built

A.therefore
B.but
C.moreover
D.besides

A.beneficial
B.costly
C.valuable
D.worthy

A.would have joined
B.will join
C.had joined
D.would join

A.collect
B.gather
C.achieve
D.master

A.
B.
C.
D.