—Listen! There is a knock on the door. Who _____ it be?—It must be Jack. Just now I sent for him.
It remains _______ whether Tom will be fit enough to play in the finals.
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.