— You may find the key to the maths problem on page 107.
— Ah, it’s so simple. I wonder why I_________of that.
| A．hadn’t thought | B．haven’t thought | C．didn’t think | D．wasn’t thinking |
An awful accident __________, however, occur the other day.
| A．does | B．did | C．has to | D．had to |
Barrack Obama __________ President of the United States since 2010.
| A．became a | B．has become a | C．has turned | D．has been |
The matter __________ your fate can't be taken for granted. You have to think it over seriously.
| A．relates to | B．related to | C．relate to | D．to relate to |
Not many people __________ the idea that money brings happiness.
| A．in favor of | B．agree | C．subscribe to | D．approve |
On the __________ first day, our teacher told us that it was vital that we __________ notes in English class.
| A．very; take down | B．very; took down | C．just; take down | D．just; took down |