Scientists say it may be five or six years _______ it is possible to test this medicine on human patients.
4.If people feel hopeless, they don’t bother to _____the skills they need to succeed.
3.The police are trying to find out the _____of the woman killed in the traffic accident.
2.________you opinion, I think you are great.
1.______you were late for school, for you got up late.
9.―Your job ____ open for your return. ―Thanks.