We are making a big cake ________ it’s Dad’s birthday today.
| A． |
because |
B． |
until |
C． |
once |
﹣Would you like another glass of water？
﹣No， thanks．I leave now． Tony is waiting for me．（ ）
| A． |
can |
B． |
may |
C． |
must |
You should think before taking the job， and don't do it just for fun．（ ）
| A． |
quickly |
B． |
seriously |
C． |
proudly |
You must return the books to the library because you them for more than two weeks．（ ）
| A． |
have lent |
| B． |
have borrowed |
| C． |
have kept |
﹣I want to know ．
﹣ Because he has to look after his little sister．（ ）
| A． |
why he is leaving |
| B． |
why is he leaving |
| C． |
whether he is leaving |
The students of Class One how to do the experiment in class yesterday．（ ）
| A． |
taught |
| B． |
was taught |
| C． |
were taught |