1 . I’d like to attend the conference in Baltimore ________ that I can meet with some of our competitors face to face.

A．so

B．or

C．but

D．and

2 . There is no__________ they were bowling faster as they got angrier, but they also started to lose control.

A．question

B．doubt

C．discussion

D．problem

3 . Work hard, __________you will have a bright future.

A．and

B．or

C．since

D．but

4 . It’s sunny and windy today.It’s the best time        a kite.

A．to fly

B．fly

C．flying

D．flies

5 . —We’ve decided to invite him for dinner.
—_____ he doesn’t come?

A．How about

B．What about

C．Why not

D．What if

6 . I was taking an early morning walk on National Day______it started to rain.

A．as if

B．unless

C．when

D．even if

7 . Why not ________ to the movie this Sunday ?

A．going

B．go

C．goes

D．went

8 . ______ day in and day out can sharpen your basketball skills, and it’s no use ______ it without perseverance.

A．Practicing; to do

B．To practice; to do

C．Practicing; doing

D．To practice; doing

9 . I get butterflies in my stomach, because this is the first time that I            myself to the class.

A．am introducing

B．introduce

C．had introduced

D．have introduced

10 . ________ I had left the door unlocked, so I had to go back to check it.

A．It was likely that

B．It was natural that

C．It was a shame that

D．It was no wonder that