be动词的选择There _____ a pen and a pencil on the desk.这里该用 is 还是
be动词的选择There _____ a pen and a pencil on the desk.这里该用 is 还是
There is a pen and two books on the desk.改为一般疑问句后be该用单数还是复数?
there is a pen and two books on the desk.还是there are a pen a
There ___ a pen and two pencils on the desk.用is还是are~
there is a pen and some rubbers on the table.这里应该用is还是are?
A pen and pencil box on the desk
there is a pen on the desk?
There is a pen and a pencil 还是There are a pen and a pencil
there is a pen and tow books on the desk.对 a pen and tow boo
There is a pen and three apples on the desk.为什么用is不用are?
用括号里单词的正确形式填空There( )(be)two books and a pen on the desk
there be句型怎么 变疑问句和否定句 there is a pencil on the desk