Actually, anyone can be he wants to be，It doctor, a teacher ,a lawyer, a scientist or a manager so long as he sets his mind it．
| A．whatever：to | B．whoever;on |
| C．whomever；for | D．whatever; with |
Look at the mess the boys made! You _______ have taught them how to behave themselves.
| A．must | B．may | C．can | D．should |
_______ I paid a visit to this scenic spot, I was deeply attracted by its beauty.
| A．Firstly | B．For the first time |
| C．The first time | D．At first |
______ has an interest in the lecture can go for a ticket from the office next to the gate of the lecture room.
| A．No matter who | B．Whoever | C．Anyone | D．Those who |
The new China was founded in 1949, ______ great changes have taken place.
| A．since when | B．after which | C．in which | D．when |
She insisted that we ________ the source of the river and begin our journey there.
| A．find | B．found | C．had found | D．would find |