Are they---------(swim)in the river now?

Are they---------(swim)in the river now? They (swim;are swimming)in the river There are many boys_____(swim) in the river now.适当 NO,they are swim in the river.(写出问句) Many boys___(swim)in the river now They often swim in the river.(用now改写句子） The boy ___(swim) in the river now. Look!Jim is ____ in the river now.(swim) They can swim in the river.(改为否定句） They spent time _____(swim) in the river. They had a swim in the river.改为现在完成时 They dont allow anyone to swim in the river改空 in the river i