-–She looks very happy. She ________have passed the exam. --I guess so. It’s not difficult after all.
Would you like Helen _____ you since you have some difficulties?
Oliver climbed up the hill _____ swimming in the cold weather.
_____ the cap, I couldn't help _____ our team leader.
_____ more attention, your dictation might have been done much better.
_____ afraid _____ behind, Bill studied even harder than ever before.