59. What do you think of the TV play?

______ ______ ______ ______ the TV play?

58. To learn a foreign language is not easy.

______ ______ ______ ______ learn a foreign language.

57. Not all balls are round in the USA.

______ ______ are round, but ______ ______ in the USA.

56. It’s possible that she may catch a cold.

It’s ______ ______ ______ to catch a cold

55. Every one of us had a nice time last night.

_____ of us ______ ______ last night.

54. He is a scientist, too.

He is ______ a scientist.

53. His father took a plane to the USA three days ago.

Three days ago his father ______ ______ the USA.

52. Don’t forget my words.

Remember ______ ______ ______.

51. Mary doesn’t know much about China.

Mary ______ ______ about China.

50. Listen! Someone is knocking at the door loudly.

Listen! ______ ______ a ______ ______ ______ the door.