.IfyouhavereallybeenstudyingEnglishforsolong,it’sabouttimeyou_____abletowritelettersinEnglish.
A、shouldbeB
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_____ him tomorrow.
Nancywassurprisedthattheyhave（），Theyseemedtobeahappycouple.
Arriving at the bus stop, _____ waiting there.
_____ regular training in nursing, she could hardly cope with the work at first.
The country’s chief exports are coal, cars and cotton goods, cars _____ the most important of these.
