— I’m sorry, I shouldn’t have been so rude to you. — You ______ your temper but that’s OK. [ ]

Once a computer is put into water, the system _______ and cannot repair itself.

Those singers have lovely___________ and they sing very well.

It really seemed ages _____ thepolice came on the scene and cleared away the damaged cars　

How many times have you been to China? —In fact, it is the first time I __________ here