At the railway station, the mother waved goodbye to her daughter until the train was _______.
| A．out f sight | B．out f reach | C．out f order | D．out f place |
Please tell me how the accident _________ . I am still in the dark.
| A．come to | B．come by | C．come across | D．come about |
Jack always sleeps late on Sundays. I am sure he _______ when we get home.
| A．is still sleeping | B．is to be sleeping |
| C．will still be sleeping | D．will have been sleeping |
The box ____ two meters by two meters and ____ a ton.
| A．measures; is weighed | B．is measured; is weighed |
| C．is measured; weighs | D．measures; weighs |
It never occurred to humans until the mid-1990s ______ some animals can be cloned.
| A．where | B．that | C．when | D．what |
I’ll prepare more dishes_________ your guests decide to stay for dinner．
| A．in case | B．in order that | C．even if | D．as if |