They’re arguing on who, on earth, is known for the great discovery penicillin, an effective bacteria killer.
| A．making up | B．making into | C．made of | D．made from |
Many people claim that they have seen UFO with their own eyes, _____ I personally doubt.
| A．when | B．where | C．that | D．which |
My idea is _____ we should go to help him out at once.
| A．what | B．when | C．which | D．that |
____ the young people keep learning it, they can pass on Dai culture from generation to generation.
| A．Even though | B．As soon as | C．As long as | D．As though |
The dictionary as well as the books _____ to Linda.
| A．belong | B．is | C．belongs | D．are |
It is reported that the railway _____ now will cut the journey time between the two cities by about 12 hours.
| A．built | B．to be built | C．having built | D．being built |