Choose the correct or more suitable forms of the verbs to fill in the blanks:

1. The plane ---------------------- at 3.30. (arrives; will arrive).

2. I will phone you when he ---------------- back. (comes, will come).

3. When I get home,my dog ------------------- at the gate waiting for me. (sits; will be siting).

4. I --------------------- the Joshis this evening. (visit; am visiting).

5. Look at those black clouds. It ------------ . (will rain; is going to rain)