The e-mail, as well as the telephone, ______ an important part in 
daily communication.
| A．is playing | B．have played | C．are playing | D．play |
He lifted the stone only _______ it dropped on his own feet.
| A．have | B．had | C．having | D．to have |
Tom and Jack are both very clever. ________, Tom is _______ Jack.
| A．All in all, as a clever boy as | B．In other words, as clever a boy as |
| C．That is to say, as a clever boy as | D．In word, as clever a boy as |
_____, the players began the game.
| A．Having taken our seats | B．Our taking seats |
| C．We having taken the seats | D．Us having taken the seats |
--- Is that 120? My brother is seriously ill!
---Ok. Help is _________ .
| A．in the way | B．in many ways | C．on the way | D．by the way |
Have you realized the difficulty we have ____ the problem?
| A．worked out | B．to work out | C．work out | D．working out |