ข้อสอบ ENG1002 S/2556 - 13. She is not available now; she _.

ข้อสอบ EN1002 S/2556 - Part I : Structure: 
Choose the best answer - เลือกคำตอบที่ถูกที่สุด.

13. She is not available now; she _________.

1. exercises
2. was exercising
3. has exercised
4. is exercising

Answer:  ←

ตอบ 4
13. She is not available now; she is exercising.
ตอนนี้เธอไม่ว่าง  เธอกำลังออกกำลังกาย

โจทย์ข้อนี้เป็นการทดสอบการใช้ tense จากโจทย์ keyword  คือคำว่า now ซึ่งเป็นตัวบอกเราถึง tense อะไรที่ต้องใช้ ซึ่งก็คือ present continuous นั้นเอง
คำ  adverb ต่อไปนี้ส่วนมากจะใช้ใน  present continuous ได้แก่คำว่า

now ขณะนี้
right now  ขณะนี้
at this time ในเวลานี้
at the time ในเวลานี้
at this moment เวลานี้
at the moment  เวลานี้
at present ปัจจุบันนี้


References:
Chapter 3 : Present Continuous Tense

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Chapter 3 : Present Continuous Tense

Present Continuous  Active & Passive Voice

Active Voice  S + V to be (is, am, are) + V1 ing He is writing a letter to his friend.  Passive Voice S + V to be (is, am, are) + being + V3 A letter is being written (by him).

Present Continuous Negative Form  Active & Passive Voice

Active Voice  S + V to be (is, am, are) + not + V1 ing He isn't writing a letter to his friend.  Passive Voice S + V to be (is, am, are) + not + being + V3 A letter isn't being written (by him).

Present Continuous Question Form  Active & Passive Voice

Active Voice  V to be (is, am, are) + S + V1 ing Is he writing a letter to his friend.  Passive Voice V to be (is, am, are) + S +  being + V3 Is a letter being written (by him).

Present Continuous Usage
Present Continuous used to express that something is happening now, at this very moment, will or will not happen in the near future.

Happening now:
I'm just putting the kettle on.
They're watching TV.

Planned future arrangements:
Helen's studying later tonight.
I'm playing football with my friends on Saturday.

Keyword to identify Present Continuous Tense:

English	ไทย
now/right now	ตอนนี้
at present	ขณะนี้
at the/these moment	ขณะนี้
at these very moment (emphasis)	ขณะนี้
any longer	จากนี้ไป
still	ยังคง
still now	ยังคง.....ณ ตอนนี้
even now	ถึงแม้ตอนนี้
any more	ไม่แล้ว

Present Continuous in the videos:

Here are the video that teaches present continuous tense Here are the cartoon version of present continuous tense

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