1.They ＿＿＿（plant）some trees last year.2.It ＿＿＿（i
1.They ＿＿＿（plant）some trees last year.
2.It ＿＿＿（is）Teacher's Day yesterday.
3.I had a toothache.I＿＿＿（fell）sick yesterday.