Months ago we sailed ten thousand miles across this open sea, which _______ the Pacific, and we met no storms.
A. was called B. is called C. had been called D. has been called
Susan decided not to work on the program at home because she didn’t’ want her parents to know what she __________.
A. has done B. had done C. was doing D. is doing
Nowadays, a large number of women, especially those from the countryside, _________ in the clothing industry.
A. is working B. works C. work D. worked
The policeman's attention was suddenly caught by a small box which ______ placed under the Minister's car.
A. has been B. was being C. had been D. would be
Years ago we didn't know this, but recent science ______ that people who don't sleep well soon get ill.
A. showed B. has shown C. will show D. is showing
They ________ on the program for almost one week before I joined them, and now we ______ it as no good results have come out so far.
A. had been working; are still working B. had worked; were still working
C. have been working; have worked D. have worked; are still working
