-- You know who came to our school yesterday?-- Professor Smith? We once met at a conference.-- ______. He came and gave a wonderful speech.
It has been announced by our provincial government that another two medical teams will be sent to ______ the injured people in the severe earthquake.
Samples of blood from Cholera infected patients have been sent to the blood center _______.
After several years of observation, the research group ______ the conclusion that language acquisition is faster when students ______ to the situation where it is spoken.
It will be many years ______the doctors and medical scientists can find _____ for cancer.
We have to ______ everything question in detail ______ we take action.