Hoàn thành các câu sau

. Please don’t say any thing while I (learn )..........................ny lesson
Green (teach)…....... English in this school since he (graduate)….. from this university in 1986

Next week .the children (have )..................a picnic so they (go )...................to market

today
While we ( have )................. the picnic, it (start)....................... to rain.
The water (be ).......................cold when the weather (be ).................in the winter.