Many students listened to the lecture, but I wondered how much they took ______.
| A．out | B．up | C．off | D．in |
She can'thelp______ the house because she's busy making a cake.
| A．to clean | B．cleaning | C．cleaned | D．being cleaned |
Footsteps ___ his return.
| A．announced | B．declared | C．pronounced | D．suggested |
As is known to all, theory is based on practice and _____ serves practice.
| A．in hand | B．in turn | C．in return | D．in exchange |
What he has done is far from ______.
| A．satisfactory | B．satisfied | C．satisfaction | D．satisfy |
We surely desire that the tour leader ________us immediately of any change in the travel schedules.
| A．inform | B．informs | C．informed | D．has informed |