DEDUCTIONS AND CONCLUSIONS
EGP #543 | B2 | MODALITY / must Can use the perfect form of 'must' to make deductions about the past. Lexical range: N/A
她一定是忘了我们的约见——都三点半了还没打电话来。
She ___must ___have ___forgotten our appointment—it's already three thirty and she hasn't called.
他肯定提前回家了——办公室灯灭了，车也不见了。
He ___must ___have ___gone home early, because his office is dark and his car is missing.
那场面试一定很难——她出来时脸都白了。
The interview ___must ___have ___been difficult because she came out looking pale.
他一定是注意到了那个错误——谁都没开口他就改了。
He ___must ___have ___noticed the error, because he corrected it before anyone said anything.
他们肯定已经走了——外套不见了，门也锁了。
They ___must ___have ___left already since their coats are gone and the door is locked.