________ about phonetics for you to read.
A book is
B. Here is a book
C. Here a book is
D. There the book is
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Then __________ of that time when he was a cowboy.
A. comes the memory
B. the memory comes
C. came the memory
D. the memory came
Busy ___________ he is, he can fulfill the task ahead of schedule.
A. because
B. as
C. however
D. although
___________ a research student, I would at least master two foreign languages.
A. Should I become
B. I should become
C. would I become
D. Had I become
Often ___________ not to touch the poisonous chemical.
A. does Fort warn us
B. Fort warned us
C. Fort wans us
D. had Fort warned us