13.B how +形容词+a/an+ 单数名词+(主谓)!感叹句式。 55.A a lot+比较级 24.not now (表示:现在不是了。) not yet(现在还不是) 30.not as/so +原级 as....=比较级 D 需改成not more fluently 6.need to do sth (A 错的原因是,作为情态动词,不能加s) 8. used to do sth 的否定为:didn't use to do sth.或usedn't to do sth 9. be of +抽象名词=be +形容词。如: be of great importance= be very important
第2个回答 2020-03-02
1.A:Is your mother teaches math? 改为 Does your mother teach math? (一般现在时的疑问句,三单用助动词does)B:Yes,my mother teaches math. 2A:.Are your classmates? 改为 Are they your classmates? (缺主语) B:No,they are not my classmates.They are my friends.