用am, is, are填空1 .there _____some tea in the cup.2. his father and mother ______teachers .3. here you _______.4. l _______a student of grade three.
is 不可数名词
are 两个人 所以用复数
are 固定搭配
am
不懂可以问哦,我是英语课代表
isareaream
希望能帮助你
谢谢