its

XXX

yours

his

hers

its

our

your

their

ours

yours

XXX

Personal Pronouns:

XXX used before a verb。while the objective case is used after a verb.

Possessive Pronouns:

There are two types:adjective possessive pronouns(short)and noun possessive pronouns(long)。Generally。if there is a noun after the pronoun。use the adjective possessive pronoun(short)。if there is no noun。use the XXX(long).

5.Quantifiers

We have learned two types:XXX。while ordinal numbers are used to indicate order。XXX"the."

6.Articles

There are a。an。and the。The difference een a and an is that an is used before a vowel sound(generally a。e。i。o。u)。while a is used before a consonant sound.

II。Negative Sentences:

Be verbs(am。is。are。was。were)+not。

Modal verbs(can。must。should)+not。

Auxiliary verbs(do。does。did)+not

How to XXX:

1.If there is a be verb。add"not"after it.

2.If there is a modal verb。add"not"after it.

3.If neither of the above exist。use an auxiliary verb+"not."Follow these four steps:

1)If XXX。add one after the subject and before the main verb.

2)Determine whether to use"do,""does,"or"did"as the auxiliary verb based on the main verb。Use"do"if the main verb is in its base form。"does"if it is in the third person singular。and"did"if it is in the past tense.

3)Add"not"after the auxiliary verb.

4)If the main XXX affirmative statement。change it back to its base form.

It is important to note that when using"some,"you should consider whether or not to use"any."

III。Yes/No ns:

If there is a be verb。move it to the beginning of the sentence.

一般现在时用于描述现在的状态或行为，动词要用原形。例如：I XXX.（我每天早上吃早餐）

2、一般过去时

1）一般过去时中的be动词：

was用于第一人称单数（I）和第三人称单数（XXX和其他人名或称谓，如：Benhissister等）；were用于第二人称单数（you）和所有复数（包括第一人称复数we、第二人称复数you；第三人称复数they和其他复数，如thechildren、hisparents等）。

2）一般过去时中的动词：