His health failing,________ in 1995． Andrew Peters went on leave from the army。 so Andrew Peters went on leave from the army。 when the army gave Andrew Peters leave。 the army gave Andrew Peters leave。
He________studied, yet he passed every exam． frequently。 little。 regularly。 rarely。
More has been learned since 1945 about the chemical changes in the body than in all human history before ________ time． in。 that。 which。 the。
The differences between Chinese and western society can________misunderstandings．
