In common with many people，I like white colour as it is a ________of purity.
| A．symbol | B．sign | C．signal | D．mark |
A modern city has been set up in ____was a wasteland ten years ago.
| A．what | B．which | C．where | D．that |
Only when the war was over ____ return to his hometowns.
A have the soldiers B the soldiers C the soldiers did D did the soldiers
---Did you remember to give Mary the money you owed to her?
--- Yes, I gave it to her ____ I saw her.
A while B the moment C suddenly D once
To keep healthy, Professor Johnson ____ cycling as a regular form of exercise after he retired.
| A．made up | B．put up | C．took up | D．carried out |
Tough ______ _money, his parents managed to to send him to a key university.
| A．lacked | B．lacking of | C．lacking | D．lacked in |