When ____ help, you should say “thank you.” or “It is kind of you”.
| A．offering | B．offered | C．To be offered | D．to offer |
-- Do you enjoy ______ here?
-- Oh, yes, the air, the green hill, the thickly trees. Everything is so attractive.
| A．it | B．these | C．them | D．those |
--Does he always keep an appointment, Jenny'?
-- Seldom, ______.
| A．if any | B．whenever possible | C．if ever | D．when necessary |
-- I'd like to invite you to a party tomorrow evening.
-- Thank you, but ______ I'll be free I'm uncertain.
| A．while | B．if | C．when | D．whether |
Please remind ______ he said he was coming. I may be in time to meet him.
| A．where | B．when | C．how | D．what |
Adam left word with my wife ______ he would call again in the afternoon.
| A．who | B．as | C．that | D．which |