She was quite sure that she ______the door before she left the office. A) will lock B) would lock C) has locked D) had locked 2、 In fact, there are different reasons ______ peopleare working long hours. A) where B) which C) why D) how 3、 Broadband(宽带) connectionsare widely available now, ______makes online shopping much easier. A) what B) whatever C) who D) which 4、 The manager decided to continue the sales for ______ two weeks because of the large stock of goods. A) other B) another C) the other D) others 5、 We don't have to hurry as the bus ______ for Londonat five in the evening. A) leaves B) left C) has been leaving D) has left 6、 ______ great losses in the financial crisis,the company closed down last year. A) Being suffered B) To suffer C) Having suffered D) Suffered 7、 Last week two engineers ______ to help solvethe technical problems of the project. A) have sent B) were sent C) sent D) had sent 8、 You have to work in this position for two years______ getting promoted. A) on B) since C) with D) before 9、 Please feel free to tell us ______ you thinkabout our program so that we can benefit from your views and experience. A) what B) that C) if D) lest 10、 The company is offering a five percent discount tocustomers as a way ______ its online sales: A) promoting B) promoted C) to promote D)promotes