Don’t you remember Rose, in house we had a Christmas party last year?
----She looks happy. She _______ have passed the exam. -----I guess so. It is not difficult after all.
Choosing the right dictionary depends on ______ you want to use it for.
More than a dozen students in that school _______ abroad to study medicine last year.
----Why did you leave that position? ----I ______ a better position at IBM.
Some experts demanded that children _______ time to sleep and play.