He thinks only of himself；he doesn’t________ other people.
| A．care about | B．care for | C．care of | D．care to |
I should very much like to have gone to the party but I _________.
| A．am not invited | B．am not being invited |
| C．shall not be invited | D．was not invited |
----I’m sorry, but there is no smoking on this flight.
----Oh, I _____ that. Sorry, I won’t again.
| A．don’t know | B．didn’t know | C．won’t know | D．haven’t known |
—I really don’t know how to thank you enough．
—．
| A．No problem | B．Think nothing of it | C．With pleasure | D．Glad to hear that |
On our way to school, suddenly it began to rain, and we hurried to take______under a big tree．
| A．recovery | B．notice | C．advantage | D．shelter |
I can still remember that it is since the 1990’s, _____ we began to use cell phones,_______ the number of mobile users has greatly increased．
| A．while; when | B．when; what | C．before; that | D．when; that |