I don' t think Xiao Li is ____ the other students ____ mathematics.
| A．after, on | B．after, with | C．behind, in | D．behind, at |
He ______ English for six years by the time he takes his examination.
| A．was studying | B．would have been studying |
| C．had been studying | D．will have been studying |
George has arrived, but I did not know he ______ until yesterday.
| A．comes | B．will come | C．is coming | D．was coming |
It ______ six years since they last saw each other.
| A．was | B．had been | C．is | D．would have been |
Look at these clouds. ______.
| A．It'll rain | B．It's going to rain | C．It'll be raining | D．It is to rain |
-- Could you give these books to Mr. Mackintosh?
-- Certainly, ______ him about something else in any case, so it won't be any bother.
| A．I saw | B．I see | C．I can see | D．I'll be seeing |