I________all the cooking for my family，but recently I've been too busy to do it.
| A．will do | B．do | C．am doing | D．had done |
Those in the living room, which are the most ______ to hurt us, are computers, televisions and lamps.
| A．possible | B．probable | C．likely | D．possibly |
The teacher rather than the students _____ referring to Reading Skills that _____newly published in America.
| A．is; was | B．is; were | C．are; was | D．are; were |
________ in 1636, Harvard is one of the top universities in the United States.
| A．Being founded | B．It was founded | C．Founded | D．Founding |
The waste from the paper factory has poisoned all the fish to death--- _____ is left.
| A．nothing | B．no one | C．none | D．not anything |
You _____ her in her office last Friday, she’s been out of town for two weeks.
| A．needn’t have seen | B．must have seen |
| C．might have seen | D．can’t have seen |