---I find the more we study, the more difficulty we have ________ out Maths problems.---Oh, I agree with you. Maths is more and more difficult.
-, where is the toilet? -Over there. A. Excuse me B. Sorry C. How are you
Thanks _____ your help .
Are these your cousins? _______ .
This ____my sister and those ________ my parents.
_______________ ? It’s my ID card.