He seems too tired today, and I wonder__________ he got a good sleep last night.
| A．when | B．that | C．if | D．where |
It's not necessary to explain the truth _____ there is spring wind, there is green grass．
| A．which wherever | B．that which |
| C．which when | D．that wherever |
_____ New York _______ London are two of the largest cities in the world.
| A．Either; or | B．Both; and |
| C．Neither; nor | D．Not only; but also |
______ leaves the room last ought to make sure that the windows are closed and the door locked.
| A．Whoever | B．Who | C．Who will | D．Those who |
News came from the school office ________Wang Lin had been admitted to Beijing University.
| A．which | B．what | C．that | D．where |
The organizers promise ________wins the first prize a chance to go abroad。
| A． who | B．whom | C．whoever | D．whomever |
The research also raises the question ________ children from low-income, less educated families need earlier aid.
| A．what | B．that | C．when | D．whether |
Most volunteers are from universities, _________ it is not uncommon to see middle and primary school students too.
| A．though | B．however | C．since | D．even if |
Paul was not allowed to work he was fully recovered from the flu.
| A．even if | B．whether | C．because | D．until |