The sports meeting, originally ________ be held last Friday, was finally delayed because of the bad weather．

A．due to

B．thanks to

C．owing to

D．according to

The comedy Tooth Fairy is based on the story all western children know： If a kid leaves a tooth under their pillow, they'll receive a visit from the tooth fairy, who takes the tooth and leaves a gift ________．

A．in general

B．in exchange

C．in total

D．in common

Mothers holding jobs outside the home should have ________ schedules to make it easier to care for their children．

A．heavy

B．smooth

C．flexible

D．complex

The order came that the medical supplies ________ to Beijing for the H1N1 flu soon．

A．would be sent

B．should send

C．be sent

D．must be sent

21st Century, ________ weekly newspaper, provides us with ________ variety of fresh articles about campus studies and life．

A．a, a

B．the, the

C．a,/

D．the,/

I can't ________ my studies with all that noise going on．

A．devote to

B．concentrate on

C．knock down

D．apply to

Not until he left his home ________ to know how important the family was for him．

A．did he begin

B．had he begun

C．he began

D．he had begun

We could hardly believe what she says because she is ________ changing her mind．

A．regularly

B．steadily

C．eventually

D．constantly

Will you drop in at my house this afternoon if ________ ?

A．it's convenient to you

B．you are convenient

C．it's convenient of you

D．you will be convenient

The little boy was so careless with his spelling that he often ________ letters from words．

A．left out

B．left behind

C．left off

D．left alone