Only after they had carried out over ten experiments ______ the decision.
—What about putting some pictures into the report?— A picture is worth a thousand words.
Buses have routes. They _________ and _________people at different places on the routes.
The school rules state that no child shall be allowed out of the school during the day, ______ accompanied by an adult.
__________ the students, the teacher came into the room smiling.
I have told you the truth. ______ I keep repeating it?A Must B Can C May D Will