The teacher asked the boy _____.
| A．what the matter was |
| B．what was the matter |
| C．what the matter is |
| D．what is the matter |
______ he explained it to me did I make sense of what he said.
| A．Hardly had | B．Not until | C．Shortly after | D．No sooner |
It sounded like something was wrong with the car’s engine then, ______ they would have carried on their journey.
| A．otherwise | B．therefore | C．meanwhile | D．besides |
---There is still some doubt ______ he is innocent.
---That’s why he was accused ______ the crime.
| A．that; with | B．whether, of | C．that, of | D．whether, with |
It’s ______ to sign up for the cooking contest when you can’t cook a meal by yourself.
| A．reasonable | B．conventional | C．positive | D．ridiculous |
---______, the floor is really slippery.
---Thank you for reminding me.
| A．Mind your step | B．Walk slowly | C．Mind your feet | D．Come this way |