Alice is now in the UK, but she _____ English for three months in Hong Kong.
Could it be in the room we had a talk last night you left your keys ?
____that the government can lead them out of the financial crisis ,people are optimistic about the future of the country.
In the time of HINI, scientists ____ their spare time to conduct research on the ways of curing the disease.
---- Did you pass the driving test? ---- No. I ______ it, but I had little time practicing.
Alone in the lab on Sundays, the young scientist was so busy with his research work that he felt _____ but lonely.