I often go to school_____foot, but I had to go to school_____taxi yesterday because of rain.[ ]

What did the teacher say just now?—He asked me _____

Her English is very ______, but she can’t sing English songs ____.

I’ve got to go now. —Must you? I ______ you could stay for dinner with us tonight.

What’s your first impression ________ Mrs Wang?—-She looks serious. I think she’ll be strict _____ us _______her own work.