__ I do not know
what I ___________ without the suitcase you lent me.
__ Glad to have been of some help to you.
| A．would have done | B．would do | C．should have done | D．should do |
Under the new policy, anyone who is found ______ in the school building will be fined $60.
| A．smoke | B．smoking | C．to smoke | D．smoked |
The Internet is widely used, which ______ the development of English.
| A．speeds up | B．takes over | C．gets across | D．turns to |
Only when she reached her office____ she had left her key at home.
| A．she realizes | B．does she realize | C．she realized | D．did she realize |
---The president _____ by his doctor today that his cancer has come back.
| A．informs | B．has informed |
| C．has been informed | D．is being informed |
_____ by the sun, they walked towards their destination through the woods.
| A．Guiding | B．Guided | C．Guide | D．To guide |