计算题:
⑴____A. shop B. stop C. no
⑵____A. can B. cake C. sad
⑶____A. Thursday B. hurt C. nurse
⑷____A. time B. bike C. kite
⑸____A. bus B. us C. put
四年级共选49位同学参加校运会开幕式,他们排成一个方阵.这个方阵的最外层一共有多少人?