连词成句：（1）weight-training doing football exercise at centre th

1 .Some football players are doing weight-training at the exercise centre .
2.They can see many interesting specimens in the lab on the second floor.
northeast northwest southeast southwest

1.some football players are doing some exercise at the weight-training centre. weight-training centre应该是举重馆
2.they can see many interesting specimens in the lab on the second floor.
northern southern eastern western

some players are doing the weight-training exercise at the football centre.
northen easten western southen