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

That time has not yet come Most Chinese carmakers are years behind their western counterparts (同行)________ technology and service .[ ]

_________ since we last saw our primary school classmates.

Which of these sweaters would you like— _____. They are both expensive and out of fashion.

Smoking should ____________ in school. —-I agree. It’s bad for our health.