Having a trip abroad is certainly good for the old couple, but it remains____ whether they will enjoy it.
| A．to see | B．to be seen | C．seeing | D．seen |
75.Is ____ necessary to complete the design before National Day?
| A．this | B．that | C．it | D．he |
76..I don’t think ____ possible to master a foreign language without much memory work.
| A．this | B．that | C．its | D．it |
77.Does ______ matter if he can’t finish the job on time?
| A．this | B．that | C．he | D．it |
78.It was not _____ she took off her glasses _____ I realized she was a famous film star.
| A．when , that | B．until , that | C．until , that | D．when , then |
79.I was disappointed with the film . I had expected ______ to be much better.
| A．that | B．this | C．one | D．it |