With a lot of difficult problems ____, the newly -elected president is having a hard time.

Would you like to play table tennis with us after school?–– _________.

Please ________ a doctor at once, Jack. The child is badly hurt.—OK. I will.

.— Is there any possibility ____ you could pick me up at my office at 7：00 tomorrow evening?— No problem.

I have __________ written my composition, but she hasn’t __________.