Why did you go to the wrong class,Mr Wang " "Well, I forget _______ I was supposedto go to"

What should I buy my mother for her birthday- ________ you buy her a scarf

is very strict with others, but heis always blind _____ his own shortcomings

Not only _____ a promise, butalso he kept it.

Have you finished the book —-No, I’ve read up to _______ the children discoverthe secret cave. .