It may be necessary to stop______in the learning process and go back to the difficult points in the lessons.

The “No.1 Document” is designed to help the rural population increase their incomes.— I believe that peasants’ life ______ better and better

Is there anything _______to you

― It’ a fine day. Shall we go jogging ― ______ But we need to be home before six.

187. Yesterday we had a long meetingwhichfour hours.