动词填空 用括号内所给动词的适当形式填空。（本大题共8分，每小题1分）
We all know Lisa is a polite girl and she ________ (treat) the elderly politely and equally.
Mr Zhang ________ (contact) us and told us something important about the trip last night.
It’s necessary for little Tom ________ (not argue) with his twin brother any more.
Our classmates ________ (group) into four teams, so we could have a competition in class.
He ________ (save) money now because he wants to buy a beautiful overcoat for his mother.
— How are you getting on with your English, Grace?
— Not very well.I find it difficult.I ________ (not improve) it yet.
The teaching centre kept ________ (provide) chances to study for their students last year.
Olympic Games people are looking forward to ________ (hold) every four years.