11 ________ 12 ______ 13 _________ 14 _________ 15 ______ 16 __________ 17 _________ 18 _______ 19 _________ 20 ________ 30 _______ 40 _________ 21 ___________ 26 ____________ 32 ___________ 38 ____________

twelve

thirteen

fourteen

eleven

写出正确的数字。

sixteen

eighteen

thirty

twenty

nineteen

seventeen

fifteen

forty

twenty-one

twenty-six

thirty-two

thirty-eight