These continual _____ in temperature make it impossible to decide what to wear.
There ________. And here ________.
________ a beautiful palace ________ the foot of the hill.
---- 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