He remembered ________to Shanghai when he was a child, but he had an unclear impression now.
The manager of the hotel forbids employees ________ tips from customers.
—Do you think Steven will ________ at the party tomorrow?—As far as I know, he is busy recently. He must come to celebrate your birthday, though.
—David has made great progress recently.—________, and ________.
----David, do you like the Literature Club?----Sure. Please inform me _____ any information about it if you are free.