49.The microscope is a ________________(science) instrument.

48.The bad weather ___________________(encourage) people from attending the

parade.

47. He is no____________(strange) to poverty.

46. It's___________(sun) today , let's go fishing.

45.That is unacceptable in our_______________(social).

44.Tom is really a ______________(trouble) boy.

43.We had no _____________ (succeed) in finding a new flat.

42.I’m afraid it’s completely _________________(worth).

41.He was filled with ____________________(wonderful) at the sight of his newly-born son.

40. A beautiful and very successful actress was the star of a new ___________(music) show.