It is no use _____to come now. He is busy.
| A．ask him | B．to ask him | C．that you ask him | D．asking him |
. 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 |
They suspected that the secret had been________ by one of their colleagues．
| A．given up | B．given in | C．given out | D．given away |
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 |