Once __________, the play was well received by the public.
| A．perform | B．performing |
| C．performed | D．to perform |
It had no other effect except ___ him all the anxious.
| A．make | B．making | C．to make | D．made |
It might __ reasonable to start the meeting at 4:30.
| A．make | B．be made | C．to make | D．made |
It's clear that the thief was seen __ into the room that night.
| A．went | B．go | C．going | D．to go |
He apologized to me ___ again.
| A．to be late | B．of being late | C．to have been late | D．for being late |
He’s lucky enough to have many people ___ him with the work.
| A．help | B．to help | C．helped | D．helping |