• A. take
• B. takes
• C. not takes
• D. took

Answer: Option B

Explanation:

• A. caused
• B. is occured
• C. is caused
• D. has caused

Answer: Option B

Explanation:

• A. busy
• B. more busy
• C. busiest
• D. most busiest

Answer: Option C

Explanation:

• A. wouldn't pass
• B. couldn't pass
• C. wouldn't have failed
• D. wouldn't have passed

Answer: Option D

Explanation:

• A. very
• B. extremely
• C. less
• D. too

Answer: Option D

Explanation:

• A. a noun
• B. an adjective
• C. verb
• D. adverb

Answer: Option A

Explanation:

• A. obvious
• B. uncertain
• C. invisible
• D. hidden

Answer: Option A

Explanation:

• A. noun
• B. adjective
• C. verb
• D. adverb

Answer: Option B

Explanation:

• A. Airport is a busy place
• B. The airport busy place
• C. The Airport is busy place
• D. An Airport is a busy place

Answer: Option A

Explanation:

• A. published
• B. which published
• C. was published
• D. publish

Answer: Option C

Explanation:

• A. have escaped
• B. have had escaped
• C. had escaped
• D. escaped

Answer: Option C

Explanation:

• A. If my English teacher is here, I would be very happy.
• B. If my English teacher were here, I would be very happy.
• C. If my English teacher was here, I would be very happy.
• D. If my English teacher will here, I would be very happy.

Answer: Option B

Explanation:

• A. They done it very well after they had practiced
• B. They does it very well after they had practiced
• C. They did it very well after they had practiced
• D. They do it very well after they had practiced

Answer: Option C

Explanation:

• A. 2%
• B. 2.5%
• C. 3%
• D. 3.5%

Answer: Option D

Explanation:

• A. camphor
• B. common salt
• C. sugar
• D. salphur

Answer: Option C

Explanation: