单项选择题
A. shan't we B. won't you C. shall we D. will you
This box is（）that one.A. twice big thanB. twice biggerC...
单项选择题This box is（）that one.
A. twice big than B. twice bigger C. twice as big as D. twice more big than
The book is（）to be put into the envelope. You need a bi...
单项选择题The book is（）to be put into the envelope. You need a bigger one.
A. big enough B. too big C. very big D. so big
—It's so noisy upstairs. What are they doing —They be...
单项选择题—It's so noisy upstairs. What are they doing —They be having a party.（）
A. could B. should C. must D. would
