It was not until 1938 _________ the first colour TV programme was broadcast.
| A．which | B．that | C．when | D．on which |
_____ time, the teacher had us do half of the exercises in class and complete the other half for our homework.
| A．To save | B．Save |
| C．Saving | D．Having saved |
Anyone ______ trying to take knives on board flights would be caught by the police.
| A．finds | B．being found |
| C．found | D．will find |
While watching television, __________.
| A．the doorbell rang |
| B．the doorbell rings |
| C．they heard the doorbell rings |
| D．they heard the doorbell ring |
It’s reported that global warming is heating the planet twice as quickly as _____ feared.
| A．extremely | B．previously |
| C．preciously | D．eventually |
The girl _______ in bed _______ to us that she had _______ the dictionary on the bookshelf.
| A．lay; lied; lay | B．lying; lied; laid |
| C．lying; lay; laid | D．lied; lied; laid |