It was in the lab __________ my father did the experiment yesterday evening.
--The prison was ___________ fire last night. --Someone must have set fire___________ it.
The __________ is just around the corner and you won't miss it.
__________ she couldn't understand was__________ fewer and fewer students showed interest in her lessons. A. What; why B. That ; what C. What ; because D.
People greatly__________ in their views of life.
You look so tired tonight. It is high time you_________.