---Are you coming to Betty’s wedding?
---I’m not sure. I ______ go to Beijing on business that day.
A. mustB. wouldC. shouldD. might
The children all look forward to _______ the carnival next week.
A. take part B. take part inC. taking partD. taking part in
You can trust him because he always ________.
A. keeps his wordsB. stick to his promise
C. keeps his wordD. keep his promise
She speaks English fluently _____ she were a native American.
A. as thoughB. even ifC. as long asD. ever since
The reason _______ he felt frustrated was ______ he lost his MP4.
A. why/that B. that/why C. why/because D. that / because
Now that the sign reads, “No person ______ smoke here”, please choose a seat in the smoking area over there if you _______ smoke.
A. must; shall B. will; mustC. shall; must D. can; should
