1 . It is hard for me to recall the day ______ we lived in Canada.

A．that

B．which

C．when

D．as

2 . The chemical process, involved in the treatment of materials for clothes, ________ the environment badly in some countries, arousing much attention of them nowadays.

A．damaged

B．damage

C．damaging

D．to damage

3 . A high-tech park is announced ________ in this area, but I don’t know when the project will be put into practice.

A．to have built

B．to have been built

C．to be built

D．to build

4 . ________ inspiration from a Japanese architect, Mr. Smith used cardboard material for his tents.

A．Taking

B．Taken

C．To take

D．To be taken

5 . Hobbies mainly ________ for relaxation and enjoyment vary from person to person.

A．pursuing

B．pursued

C．being pursued

D．having pursued

6 . American people appreciate ________ beforehand when you wish to pay a visit to them.

A．your calling

B．you call

C．you to call

D．that you call

7 . Having suffered from heart attack for years, Michael Jackson died on June 25, 2009, ________ the fall of the king of pop.

A．to announce

B．announced

C．announcing

D．being announced

8 . Not once ________ Bob Dylan ever ________ the time to ask himself if his songs are literature.

A．would; have

B．did; have

C．has; had

D．was; had

9 . ________ confidence in yourself is the biggest difficulty ________ greater progress in your work.

A．Lacking of; in making	B．Lack of; to make
C．Lack of; in making	D．The lack of; to make

10 . The new smartphone ________ next month can guarantee excellent sound quality, which will delight those headphone-lovers.

A．releasing

B．released

C．to release

D．to be released