1 . ________ it's caused by feelings of guilt from overindulgence, unmet expectations, or a return to loneliness, depression after the holidays is a common condition, also called "post-vacation blues".

A．If

B．Regardless of

C．Whether

D．As though

2 . ___________ to TV programs for long hours will do harm to students’ eyesight and even mental development.

A．Exposed

B．Having exposed

C．Being exposed

D．Exposing

3 . Since it first debut on the airwaves in 2007, "The Big Bang Theory”________ the ratings and won numerous victories at the Emmy, Golden Globe and People's Choice awards.

A．topped

B．has topped

C．was topped

D．had been topping

4 . The Oscar award-winning hit song “Let It Go” captivates the hearts of millions all over the world and ________especially well in China and America.

A．sells

B．selling

C．has been sold

D．having sold

5 . In order to be eligible to play in playoffs, players ______ present for at least 50 percent of games for the team they are registered on.

A．may have been	B．must have been
C．could have been	D．should have been

6 . It is such a delicate face that the girl has ______ she looks like someone straight out of a painting.

A．as

B．that

C．which

D．who

7 . Only when the age-old distrust between the two nations is overcome _________ to the area.

A．lasting peace will be restored	B．will lasting peace be restored
C．will be lasting peace restored	D．will be restored lasting peace

8 . His voice ______ as he reaches puberty, the teen pop sensation is struggling to hit high notes.

A．breaks

B．breaking

C．has broken

D．broken

9 . It was ______ first discovered and published T.S. Eliot’s famous poem The Waste Land.

A．them who

B．they who

C．them that

D．they whose

10 . The king of hearts is the only one of the kings in a set of playing cards who ______ mustache.

A．doesn’t have

B．don’t have

C．doesn’t have a

D．don’t have a