If the underlined word the following sentence is correct, write OK. If it is wrong, write the correct word.
  $\longrightarrow$  We first visited China on 2006

If the underlined word in the following sentence is correct, write OK. If it is wrong, write the correct word.
  $\longrightarrow$  My birthday is at the second of July.

If the underlined word in the following sentence is correct, write OK. If it is wrong, write the correct word.
  $\longrightarrow$  Let's meet on five o’clock, shall we?

If the underlined word in the following sentence is correct, write OK. If it is wrong, write the correct word.
  $\longrightarrow$  School starts again in September.

If the underlined word in the following sentence is correct, write OK. If it is wrong, write the correct word.
  $\longrightarrow$  There’s a party at Emily’s at Saturday

If the underlined word in the following sentence is correct, write OK. If it is wrong, write the correct word.
  $\longrightarrow$  What do you want to do on the morning?

If the underlined word in the following sentence is correct, write OK. If it is wrong, write the correct word.
  $\longrightarrow$ Let’s go and see Grandma on Easter.

If the underlined word in the following sentence is correct, write OK. If it is wrong, write the correct word.
  $\longrightarrow$ Where do you usually go in Christmas Day?

Complete using on, in or at.
  $\longrightarrow$ There are lots of people________the restaurant.

Complete using on, in or at.
  $\longrightarrow$ The people who live _____ number 44 are away on holiday.