She looks sad. Could you please tell me ____ that prevents her from being as happy as before?
| A．what it is | B．it is what | C．how it is | D．it is how |
The time for the exam is ____ .
| A．approaching | B．approaches | C．approach | D．approached |
All the work ______ ,and we are going to leave..
| A．complete | B．completing | C．have completed | D．has been completed |
_______?
----He is very kind to us.
A. What does your brother look like B. How is your brother
C What do you think of your brother D. How much do you like your brother
Do you know we have much difficulty ____ the work on time..
| A．on finishing | B． finishing | C．to finish | D．at finishing |
The teacher always makes his class so ____and interesting for us.
| A．lovely | B．living | C．live | D．lively |