Điền từ thích hợp vào chỗ chấm

1.     If she (need) ___________ a computer, her brother (give) _____________her his computer.

2.     If we (have / not) _____________time this afternoon, we (meet) _____________

3.     He (talk)_____________to her if you (want / not)_____________to do it.

4.     You (win / not) _____________the game if you (know / not)_____________the rules.