Remember to keep the dog on a leash （狗链） you walk it， honey!
Sure． I won't let it hurt others．（ ）
A．untilB．afterC．whileD．since
___________the students came from different countries，they got on well in the camp．（ ）
A．WhenB．UnlessC．ThoughD．Until
Tina is pleased with the toy．It is ________ gift she has ever received．（ ）
A．a betterB．the betterC．a bestD．the best
I don't know when the bridge was built_______，but it must be very old．（ ）
A．exactlyB．carefullyC．luckilyD．easily
Ann grows up in a _______family．So she always feel happy when she gets home．（ ）
A．richB．strictC．lovingD．serious
Whose dictionary is this？
Oh，it's Peter's．He was looking _______it everywhere．（ ）
A．atB．forC．likeD．after