They decided to leave the waiter a big _____ because the food and service had been excellent.
| A．note | B．reward | C．tip | D．gift |
Stop _______ me to hurry up. I can only go so fast.
| A．to tell | B．telling |
| C．to have told | D．having told |
Certainly I posted your letter — I remember ______ it.
| A．posting | B．to post |
| C．to be posting | D．have posted |
Please remember _______ the plants while I’m away.
| A．watering | B．to be watering |
| C．to water | D．being watering |
Please excuse me _______ your letter by mistake.
| A．to open | B．to have opened |
| C．for opening | D．in opening |
After describing the planned improvements, she went on _______ how much they would cost.
| A．to explain | B．explaining |
| C．to be explaining | D．having explained |