问题

________they visited the Science Museum,they showed great interest in everything they saw. [ ]

A: The first time
B: For the first time
C: At first
D: At the first time

正确答案是：

同类题型

st informal dinners, you should wear comfortableand ______ clothes

Wilma became the first American woman to win three Olympic gold medals in track, ________ made her mother very proud.

The twins are so much _______ that their parents can’t tell one from the other sometimes.

_________is very interesting to swim in the river in summer,but it’s dangerous.

下列各项中，句式完全相同的一组是