英语单复数_____Jim's trousers?填 Is it 还是 Are they?一条裤子 应该是 a pair

一条裤子是a pair of trousers 还是one trousers 一条兰色的裤子是a blue pair of trousers还是a pair of blue trousers this pair of block trousers 填is还是are 一条裤子是pant还是pants?一条裤子是用are还是a pair of?我穿着一条裤子英语怎么说? they are trousers 和it’s trousers how much is that pair of trousres it's 50yuan 还是they are 50y there are a pair of trousers.请问用is还是are? a pair of_________(shoes,trousers.) 后面是复数还是单数? there is a pair of trainers .回答是it's bIue 还是they're blue. he has a pair of shoes._____10 dollars(填it is 还是the are)急! Are these your trousers?—Yes,___.A.it is B.they are C.they'r a pair of trousers 是用it还是them