—She looks very happy. She ______ have passed the exam. —I guess so. It’s not difficult after all.
If you happen to get lost in the wild, you’d better stay ______ you are and wait for help.
-Did you catch what I said?
-Sorry. Ia text message just now.
I looked up and noticed a snake ______ its way up the tree to catch its breakfast.
The hotel is almost finished, but it _____ needs one or two weeks to get ready for guests.
Tom took a taxi to the airport, only _____ his plane high up in the sky.