选出错误的一项并改正。
（ ）（1）They had cups intheir heads.
A       B           改正：_______
（ ）（2）They areall laughed
A  B                         改正：________
（ ）（3）Where isyou bag?
A  B                       改正：________
（ ）（4）I make lotof mistakes with Chinese words, too.
A  B                       改正：________