Visitors ______ not to touch the exhibits.
| A．will request | B．request | C．are requesting | D．are requested |
4.It is said that the early European playing-cards ____ for entertainment and education.
| A．were being designed | B．have designed |
| C．have been designed | D．were designed |
3.As the years passed， many occasions―birthdays， awards， graduations ____ with Dad’s flowers.
| A．are marked | B．were marked | C．have marked | D．had marked |
2.The flowers were so lovely that they ____ in no time.
| A．sold | B．had been sold | C．were sold | D．would sell |
1.Months ago we sailed ten thousand miles across this open sea， which ____ the Pacific， and we met no storms.、
| A．was called | B．is called | C．had been called | D．has been called |
---It looks heavy. Can I give you a hand?
---_______.
| A．No, thanks | B．Yes, my pleasure | C．No, never mind | D．Yes, I do |