Although the police thought he was the most likely one, _____ they had no exact proof about it, they could not arrest him.
A. when B. until C. before D. since
As we know, _____ medical examination will help us find out health problems as early as possible.
A. common B. general C. regular D. normal
I found some old pictures at the back of my drawer which _____ memories of my childhood.
A. called in B. called up C. called back D. called for
---Is everyone here?
---Not yet …Look, there _____ the rest of our guests.
A. come B. comes C. is coming D. are coming
---_____ the incident have happened last term?
---No. At the very beginning of this term much as I remember.
A. Could B. Must C. Might D. Should
---Do you have anyone particular in _____ for the job?
---In my opinion, Tom is the right person.
A. heart B. head C. mind D. brain
