Do you still remember the museum _____ we visited three months ago?
____ the days he had spent with his American friends, he couldn’t help_____.
To have a dinner at a restaurant on the Eve of the Spring Festival, you need to reserve the restaurant months before, _____?
The reason _______ he explained for his being late was ________ his alarm clock didn’t work.
The ______ look on her face suggested that she _________ such a result.
The boy is running impatiently here and there as if____ something lost on the sports ground.