Who is the man over there Is it Mr Li—No, it ______ be him. Mr Li has gone to America.

When we are young, questions of _______we want to be when we grow up are common

What would have happened, asfar as the river bank

You seem to be familiar with London.—I ______ there for three yearsIt’s great to be back

______Lily ______Lucy may go to the concert because they have got only one ticket.