I _____ go to school by bike. But sometimes I go by bus.A. sometimes B. usually C. today
－－＝________ A．one B．two
＋＋＝________ A．seven B．eight
－－＝________ A．three B．two
＋＝________ A．eleven B．ten
＋＝________ A．four B．six
－
－
＝________
＋
＋
＝________
－
－
＝________
＋
＝________
＋
＝________
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