How is Lucy getting on with her lessons？
She won't catch up with others____ she studies harder．（ ）
| A． |
unless |
B． |
as soon as |
C． |
if |
As we know， schools and families play ________ important role in teaching students about the value of working hard．（ ）
| A． |
the |
B． |
a |
C． |
an |
I waited ____ they finished talking．（ ）
| A． |
until |
B． |
if |
C． |
because |
We have to_____the sports meeting for the bad weather．（ ）
| A． |
put on |
B． |
put up |
C． |
put off |
Which is____， the blue one or the red one？
The blue one．（ ）
| A． |
good |
B． |
better |
C． |
best |
Please tell me_____you have learnt English．
For three years．（ ）
| A． |
how long |
B． |
how often |
C． |
how soon |