They are swimming in the river是什么句型?如题

They (swim;are swimming)in the river They are swimming in the river 还是（they are go swimming in the river) There ( )some fish in the riverand they are swimming happily They are (swimming in the river).对画线部分提问 They are swimming in the river是什么句型?如题 and they are very good at swimming in the They are swimming in the tiver 变成否定句,一般疑问句,对swimming提问 Three boys are swimming in Picture 1,but they are fishing in Picture .Look!They are swimming __________ the riverA in middleof B in the middle of they are swimming ____(happy) in the river为什么填happily?有句式的话更好! They are swimming in the pool now改为一般现在时把他改成一般现在时, They are in front of the slide It' s opposite the swimming pool are they swimming or running 回答 They are swimming.(改为一般疑问句) They are swimming.改为否定句 Look!They ________ in the river．A. swim B. are swimming C. are swiming D. to swim 连词成句1.singing children dancing the are and 2 are swimming in they the now river They and I are swimming还是is swimming或am swimming