— Can you explain ____ you have been late for school several times this term?
— Sorry, but it is the first time that I have been late this week.

When doing my homework,________.

It was the second time that I      the film.

He asked me ________ with me.

I believe it must have been in the hotel       we stayed       I lost my computer.

--He must have received a good education in his childhood, ________ he?
--________, he is polite and well-behaved and acts like a gentleman.

It is generally considered unwise to give a child_______ he or she wants.

_________we all know, Americans are competitive.

As your spoken English gets better, so ___ your written English.

It_________ to me that I should pay a visit to my friend Jane.