—How long is it since you picked up your badminton training? —It was not until my finance became better last December _______ I started the training.
I came here to see you.
You should be of your behaviour.
The government has set up a working party to look into the problem of drug ________.
It's high time that we students ______ even harder at our lessons as the national entrance examination is coming nearer.
I haven’t seen ________Maggie since I came here.