2,—what's ten and nine?—it's—— a,one

2,—what's ten and nine?—it's—— a,one what’s eighty and twenty?It’s——— Nine and one()ten Nine and one [] ten. what time is it?it's------1,one thirty 2,one o ten What time is it now ?————It's ten thirty. 翻译 what's five and four? it's nine. 还是this is nine. 为什么? What's four and three?It's_____.A six B seven C eight D nine ( ) one and nine is ten? What's three and ten?It's_______什么意思? —What‘s this?—It’s（）“U”and（）“S” A.an,a B.a,an C.a,a 英语翻译Perseverance is a kind of quality——and that's what it ta