r quality in the city, ______ is shown in the report, has improved over the past two months.

The lake beside our city will _____ when autumn comes around. [ ]

ebrate the New Year, the studentsstayed in the classroom after school, _____ the performances and ______ theroom.

Hardly　　　our walk when it began to rain.

Did Mark win the 100-meter race? — He did _____ I