Their children learn primarily by directly experiencing the world around it.
A.it
B.world
C.experiencing
D.primarily

You cannot completely avoid stress in your life. You need to find ways to cope with it.
A.After you can completely avoid stress in your life, you need to find ways to cope with it.
B.As long as you can completely avoid stress in your lives, you need to find ways to cope with it.
C.As you cannot completely avoid stress in your life, you need to find ways to cope with it.
D.Because stress can completely be avoided in your life, you need to find ways to cope with it.

________(49)
A.ambulance
B.actor
C.apple
D.adult

________(50)
A.discard
B.prepare
C.count
D.inspect

________(47)
A.automobiles
B.yourself
C.stars
D.somethings

_______(45)
A.wet
B.dusty
C.long
D.dark

________(44)
A.least
B.silly
C.necessary
D.awful

______(42)
A.sale
B.friends
C.real
D.parties

_______(41)
A.large
B.interesting
C.simple
D.frightening

No sooner had the wind stopped blowing when it started to rain heavily.
A.had
B.stopped blowing
C.when
D.heavily