The organizers want to complete their plan ahead of _______ . So we must work harder.
I do not usually celebrate my birthdays until I met him. _______, I do not like any big party because I’m not good at small talk.
No student likes ________ in the teacher’s face during the class.
-----I’ m sorry that I have broken your glasses. ----- ____________!
______ the project as planned, we’ll have to work two more hours a day.
He has been absent ________ class for quite a long time.