It's not necessary to explain the truth _____ there is spring wind, there is green grass．
| A．which wherever | B．that which |
| C．which when | D．that wherever |
---- What were you doing when Tony phoned you?
---- I had just finished my work and_____to take a shower.
| A．had started | B．started | C．have started | D．was starting |
----The train will arrive at the station in half an hour. Who ______for us?
----I am sure Dad will be standing there when we get off the train.
| A．will be waiting | B．was to wait |
| C．wait | D．was about to wait |
Although medical science________ control over several dangerous diseases, what worries us is that some of them are returning.
| A．achieved | B．has achieved |
| C．will achieve | D．had achieved |
George Gould, a friend of Carnarvon’s, went to Egypt after hearing of his strange death and visited the tomb, only ______a high fever the next day.
| A．catching | B．to catch | C．caught | D．catch |
Yang Liwei was a student at this flight school from 1983 to 1987, he studied very hard and was made chairman of the Students’ Union.
| A．during which time | B．for which time |
| C．during whose time | D．by that time |