Câu 3. Put a question for each of the underlined phrases in the sentences below.

Example:

The facsimile was invented by Alexander n in 1843.

When was the facsimile invented?

a) The zipper was invented bv W.L. Judson in 1893.

b) Maize was brought into Viet Nam by Phung Khac Khoan in the 16th century .

c) The fountain pen was invented by Lewis Waterman in 1884.

d)  The ballpoint pen was invented in Hungary by brothers Lazio and Georg Biro in 1935.

e) Xerography is widely used in commerce and industry in coying machines .

3. Đặt hỏi cho những từ in đậm trong những câu dưới đây.

a. What was invented by W.L. Judson in 1893.

b. What was brought into Viet Nam by Phung Khac Khoan? When was it invented?

c. Who was the fountain pen invented by? When was it invented?

d. Where was the ballpoint pen was invented in 1935 by brothers Lazio and George Biro?

e. Where is Xeroaraphy widely used in commerce and industry?