— Mary,how did your maths test go?—I had thought I _____ ,but in fact I came in the top 10 in my class.
A survey was carried out on the death rate of those who were infected by SARS, ________were surprising.
In recent years much more emphasis has been put______ developing the students productive skills.
_____ of water makes Death Valley a desert, but it is by no means devoid.
There are some police cars in front. What do you suppose _____?
Tina _____ have known the truth, or she would have told us.