It is the first time that I_______to Beijing.
| A．was | B．have been | C．came | D．will come |
I’m sorry, _____ I won’t be able to come tonight.
| A．for | B．and |
| C．but | D．then |
Tom’s mother always told him not to smoke again, but _____ didn’t help.
| A．he | B．it |
| C．which | D．as |
Meeting my uncle after all these years was an unforgettable moment, _____ I will always treasure.
| A．that | B．one |
| C．it | D．what |
She wants a Mexican carpet, but she can’t afford to buy ______.
| A．one | B．it |
| C．them | D．the one |
Why don’t we take a little break?” “Didn’t we just have _____?”
| A．it | B．that |
| C．one | D．this |