．Millions of pounds' worth of damage___________by a storm which swept across the southeast of China last month.
| A．has been caused | B．had been caused |
| C．will be caused | D．will have been caused |
Many students believe that the choice of their universities and courses should __________ their own interest.
| A．base in | B．base on | C．be based in | D．be based on |
− Do you know the most ancient city in China ─ Xi’an well?
− No, this is the first time I ___________ here.
| A．came | B．have come | C．am coming | D．come |
My son has changed so much that I could hardly __________ his voice on the phone.
| A．recognize | B．realize | C．hear | D．find |
He must be leaving our village because he is __________.
| A．making up | B．packing up | C．setting up | D．getting up |
− Can you _________ all the money that I should pay?
− Very sorry. Please wait a minute, madam.
| A．add | B．add to | C．add up | D．add up to |