There are two and a half hours left.为什么填two and a A.halfB.two halvesC.half an D.two and a half

there are two chairs and a desk there are two windows and a door[ ] the wall介词 two,the house,bathroom,bedrooms,are,there,and,a,in bathroom,two,a,bedroom,are,and,there 连词组句 There are 60 students in our class and _____ are girls.A.two third B.two threes C.two third There are 60 students in our class and _____ are girls.A.two third B.two threes C.two third There are two and a half hours left.为什么填two and a A.halfB.two halvesC.half an D.two and a half 智力题 How many people are there in my family I have a big family ． There are two fathers ,two mothers ,two sons ,two daughters ,two husbands ,two wives ,a sister and a brother ． There ___ a pen and two pencils on the desk.用is还是are~There ___ a pen and two pencils on the desk.用is还是are~ There are two ducks in front of a duck and two ducks behind a duck,and one duck in the middle.How many ducks are there? There is a book,two pencils and a box on the desk.请问用There is 还是There are? There are two bedrooms,a kitchen,a bathroom and a living room.翻译成中文 英语选择：There ______ a kitchen,a bathroom and two bedrooms.A.is B.are There are two bedroom,a kitchen,a bathroom and living room There( )a computer and two books on the desk.A are B is There are a man and two woman in the room./ There is a man and two woman in the room这两句英文到底那一句正确 there is a pen and two books on the desk.还是there are a pen and two books on the desk?对这语法不懂,急用! There( are )(a book)and (two pens)(on) the desk阔号中哪个错了