“Aha, you’re a chain smoker！” “Only at home. Nobody _______ that but you.”
| A．discovered | B．had discovered |
| C．discovers | D．is discovering |
China's success in manned－spacecraft travel shows ________ our country has become one of the greatest powers in space research.
| A．what | B．which | C．/ | D．it that |
________ you have seen both fighters，________ will win?
| A．Since；do you think who |
| B．As；who you think |
| C．When；whoever |
| D．Since；who do you think |
It was a matter of ________ would take the position.
| A．who | B．whoever | C．whom | D．whomever |
—I drove to Zhuhai for the air show last week.
—Is that ________ you had a few days off?
| A．why | B．when | C．that | D．where |
It is generally considered unwise to give a child ________ he or she wants.
| A．however | B．whatever | C．whichever | D．whenever |