It is believed that _____ European scientist invented _______.

It’s quite a time _____ Liu Xiang was injured in the foot, but we are sure it won’t be long _____ he returns to the track

What a table!I’ve never seen such a thing beforeIt is ________ it is long[ ]

The government must be very ________ about setting policies and make no decision until they are quitesure it is the right one.[ ]

e, it’s a common tohave a shot of espresso after breakfast.