It was in 1969 ______ two Americans went to the moon by spaceship.
| A．when | B．that | C．at that time | D．just then |
---- Where is your uncle’s home?
---- In New York. But he _____ in Boston for four years.
A has lived B had livedC lived D had been living
Many a student_____ the importance of learning a foreign language.
A have realizedB has realizedC have been realized D has been realized
. Mary_____ to college last year. Unluckily, she couldn’t take the examination because of a sudden disease.
A must have gone B can have gone C should have goneD could have gone
. Look! There is a whole crowd of people over there. Go and see what_____ and if it is a bargain, buy it.
A is sellingB is being soldC has been selling D has been sold
---- Father, why do you always make me do exercise every morning?
-----_______ good health.
A Gain B GainingC To gain D Having gained