—Mary can’t help ___the house. Why? —Because she is busy ____a hotel reservation.
| A．toclean;making | B．cleaning;making |
| C．cleaning;tomake | D．toclean;tomake |
Is it important ________us __________ learn English well?
| A．for, learning | B．for, to learn | C．of, learning | D．of, to learn |
I don’t know when Kitty ___________ tomorrow, and please give this message to her when she _________________.
| A．comes; will come | B．comes; comes |
| C．will come; will come | D．will come; comes |
I can’t decide _____.
| A．to buy which one | B．which one to buy |
| C．to buy which | D．which to buy one |
Don’t worry _____, or you’ll get _____ thin.
| A．much too; too much | B．too much; much too |
| C．much too; much too | D．too much; too much |
It is very kind ____ you to help me with my lessons. It is hard ____ me to learn them well.
| A．of; for | B．of; of | C．for; of | D．for; for |