Greatly moved by what she said, __________.
---- She looks happy. She ________ have passed the exam. ---- I guess so. It’s not difficult after all.
Scientists have to work hard to keep ________ with modern discoveries and developments.
The child was told to ________ for being rude to his uncle.
The two girls had been talking in ________ low voice all ________ time during the meeting, which upset the manager.
Only after they had discussed the matter for a few hours ______ a decision.