• A. Precious metals
• B. Metals which cannot be melted easily
• C. Non -precious metals, like copper
• D. Pure metals

Answer: Option C

Explanation:

• A. put stone and bricks on the way
• B. closed the way
• C. continued progress
• D. prepared the way

Answer: Option D

Explanation:

• A. Interested in
• B. Worried about
• C. Related to
• D. Ignorant about

Answer: Option C

Explanation:

• A. to
• B. for
• C. in
• D. on

Answer: Option B

Explanation:

• A. are
• B. were
• C. was
• D. is

Answer: Option B

Explanation:

• A. careful
• B. more cafefully
• C. most carefully
• D. so carefully

Answer: Option B

Explanation:

• A. into
• B. from
• C. across
• D. at

Answer: Option D

Explanation:

• A. me
• B. I
• C. myself
• D. meself

Answer: Option B

Explanation:

• A. was
• B. have
• C. were
• D. had

Answer: Option C

Explanation:

• A. Because
• B. Since
• C. Although
• D. Which

Answer: Option C

Explanation:

• A. have asked
• B. was asking
• C. asked
• D. had asked

Answer: Option C

Explanation:

• A. extent of his injuries has
• B. extent of his injures have
• C. extent of his jnjuries have been
• D. extent of his injuries are

Answer: Option A

Explanation:

• A. at
• B. of
• C. on
• D. to

Answer: Option B

Explanation:

• A. louses
• B. lice
• C. lices
• D. licess

Answer: Option B

Explanation:

• A. He refrained to take any drastic action
• B. He refrained to taking any drastic action
• C. He refrained i taking any drastic actions
• D. He refrained from taking any drastic action

Answer: Option D

Explanation: