—I’d like to take five days off, Mr. Smith.—______ . Don’t you know we’re very busy these days?
She was unhappy when she saw her gift, _______?
Nowadays,_______of students’ time ______been spent on studies.
––Were your two friends at home yesterday? ––No, We ______went to Hangzhou Park.
I’ll never forget the days ____ I spent with my grandma in the countryside.
-I saw Mark on the playground just now.–No, it _______ be him. He is ill in bed at home.