--How much salt did you put in the soup?
--I’m sorry to say, ________. I forget.
| A．no | B．no one | C．nothing | D．none |
John didn’t feel well yesterday; otherwise he ______ to see his friend off at the airport.
| A．came | B．would come | C．would have come | D．should be coming |
_____ you are familiar with the author’s ideas, try reading all the sections as quickly as you possibly can.
| A．Now that | B．Ever since | C．So that | D．As long as |
Before the first nonstop flight made in 1949, it_____ necessary for all planes to land for refueling.
| A．would be | B．has been | C．had been | D．would have been |
Students who pass the test will be ______ to the next grade, as has been announced.
| A．possessed | B．promoted | C．proposed | D．appealed |
When choosing a product, I sometimes try to figure out the meaning___ to its brand name.
| A．attaching | B．having attached | C．to attach | D．attached |