Helen always helps her mother even though going to school ______ most of her day.
67. Many countries have sent up man-made communication satellites to _____ the earth, which is made possible for each household to use TV.
66. Now more and more college students _____ to go and work in the west provinces of China.
65. The Chinese people _____ brave and hard-working. The Chinese _____ a brave and hard-working people.
64. We have to__________a new manager from a short-list of five candidates.
63. Passengers should Flight BA125 to Berlin.